Answers
Answer:
\(C_3H_3N\)
Explanation:
Hello!
In this case, for this percent composition problem, we can start assuming that the given percentages are actually the mass of each atom in the sample, se we can compute the moles of each one as shown below:
\(n_C=67.9gC*\frac{1molC}{12gC}=5.66molC\\ \\n_H=5.7gH*\frac{1molH}{1gH}=5.7molH \\\\n_N=26.4gN*\frac{1molN}{14gN}=1.89N\)
Next, we can find the subscript of each element in the empirical formula by diving the resulting moles by the smallest moles, in this case, moles of nitrogen:
\(C:\frac{5.66}{1.89}=3.0\\ \\H:\frac{5.7}{1.89}=3.0\\ \\N:\frac{1.89}{1.89}=1\)
It means that the empirical formula is:
\(C_3H_3N\)
Best regards!
Related Questions
what are the impact of soil Science to the development of Ghana's agriculture?
Answers
In an ecosystem, the impact of soil Science to the development of Ghana's agriculture is that it provides suitable conditions for root germination and growth.
What is an ecosystem?Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.
Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.
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Which type of region would be most likely to support chemical weathering?
Answers
Answer:
Hot and rainy conditions
Explanation:
High temperatures and greater rainfall increase the rate of chemical weathering. Rocks in tropical regions exposed to abundant rainfall and hot temperatures weather much faster than similar rocks residing in cold, dry regions. A cold, dry climate will produce the lowest rate of weathering. A warm, wet climate will produce the highest rate of weathering. The warmer a climate is, the more types of vegetation it will have and the greater the rate of biological weathering.
Got these from the internet to help explain. Hope it helps!
16) Select the best answer.
Round the answer to the correct number of significant figures.
10.05
2.8899 = 29.043495
29.0435
29.04
29.043
29
Answers
29 is not the best answer depends on the context and the rules for significant figures.
What is best answer?
The best answer depends on the context and the rules for significant figures. If we assume that we need to round to three significant figures:
10.05 has three significant figures, so it is already rounded correctly.2.8899 has four significant figures, so we need to round it to three significant figures. The third significant figure is 9, which is greater than 5, so we round up the second significant figure (which is 8) to 9. Therefore, 2.8899 rounded to three significant figures is 2.89.29.0435 has five significant figures, so we need to round it to three significant figures. The third significant figure is 0, which is less than 5, so we do not round up the second significant figure (which is 4). Therefore, 29.0435 rounded to three significant figures is 29.0.29.04 has four significant figures, so it is already rounded correctly.29.043 has four significant figures, so we need to round it to three significant figures. The third significant figure is 3, which is less than 5, so we do not round up the second significant figure (which is 4). Therefore, 29.043 rounded to three significant figures is 29.0.29 has one significant figure, so it is not rounded correctly to three significant figures.Therefore, 29 is not the best answer.
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What is the osmotic pressure of a 0.850M solution of glucose at 245K?
Use R=0.08206 (L atm/mol K) for the gas constant.
Report your answer using three significant figures.
Answers
The osmotic pressure of the system is 17.1 atm.
What is the osmotic pressure?Osmotic pressure is the pressure that must be applied to a solution in order to prevent the flow of solvent from a region of higher concentration to a region of lower concentration across a semi-permeable membrane. A semi-permeable membrane allows only solvent molecules to pass through, while preventing the passage of solute molecules.
π=i c R T
π= osmotic pressure
i = Van't Hoff factor
c = concentration
R = gas constant
T = temperature
π= 1 * 0.85 * 0.08206 * 245
= 17.1 atm
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What are quarks?
A. Particles that bind gluons together within the nucleus
B. Radioactive material that is emitted from a nucleus
C. Subatomic particles that make up protons and neutrons.
D. Fundamental forces acting between two pieces of matter
Answers
Answer:
D. Fundamental forces acting between two pieces of matter
Answer:
D. Fundamental forces acting between two pieces of matter
the human population grew form 1 billion in the year 1800to blank billion in the year 200
Answers
The human population grew from 1 billion in the year 1800 to approximately 7.8 billion in the year 2021.
In the year 1800, the estimated global human population was around 1 billion. Over the next two centuries, significant advancements in technology, medicine, agriculture, and improved living conditions contributed to a rapid increase in population.
The growth rate of the human population began to accelerate in the 20th century. By the year 1927, the global population reached 2 billion. It took just 33 years for the population to double, reaching 4 billion in 1960. The population continued to grow at an unprecedented rate, with 6 billion people on Earth by the year 1999. As of 2021, the estimated global population stands at approximately 7.8 billion.
This remarkable growth in population can be attributed to several factors, including advancements in healthcare leading to reduced infant mortality rates, improved access to education and contraception, increased agricultural productivity, and overall socio-economic development.
It's important to note that population growth has not been uniform across all regions. Different countries and regions have experienced varying rates of population growth due to factors such as fertility rates, mortality rates, migration patterns, and government policies.
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1.write the balanced equation for
CuCl2+HNO3+AgNO3=
What is the general molecular formula for phenol?
Answers
1
1
The general molecular formula for phenol is C6H5OH. It is an aromatic organic compound with a hydroxyl group bonded to a carbon atom of a cyclic structure. The ring structure has alternate double and single bonds. The formula of phenol is C6H5OH. Benzene has the formula C6H6. It is a hexagonal ring of six carbon atoms bonded with alternate single and double bonds. Each carbon atom in benzene has a bond with a hydrogen atom. In phenol, a hydroxyl group replaces one of the hydrogen atoms.
The reaction of CuCl2, HNO3, and AgNO3 is a redox reaction. In a redox reaction, one substance loses electrons and is oxidized, while another substance gains electrons and is reduced. In this reaction, CuCl2 is oxidized to Cu2+, HNO3 is reduced to NO, and AgNO3 is reduced to Ag.
The balanced equation for the reaction is:
CuCl2 + 2HNO3 + 2AgNO3 → Cu2+ + 2NO + 2AgCl
The products of the reaction are copper(II) ions, nitrogen monoxide gas, and silver chloride precipitate.
Here are some of the properties of phenol:
Phenol is a white crystalline solid that is soluble in water.
Phenol has a strong, characteristic odor.
Phenol is a mild acid.
Phenol is toxic and can cause burns to the skin and eyes.
Phenol is used in a variety of products, including disinfectants, antiseptics, and plastics.
2.) Determine the concentration of citric acid if a 20.00 mL sample is titrated with 29.06 mL of
0.385 M sodium hydroxide. (10 points)
C,H,O(COOH)2 (aq) + 3 OH' (aq) - C,H,O(COO), (aq) + 3 H20 (1) (net-ionic reaction)
Answers
The concentration of citric acid if a 20.00 mL sample is titrated with 29.06 mL of 0.385 M sodium hydroxide is 0.187 M.
What is concentration?Concentration is defined as the amount of solute that is present in a specific amount of solution. The number of moles of solute in 1 L of solution, or molarity, is used to express concentrations. The formula for concentration is C = m/V, where C is the concentration, m is the mass of the solute dissolved, and V is the overall volume of the solution, is the accepted formula.
Given 29.06 ml of 0.385 M NaOH
1000ml = 1L
Therefore, 29.06 ml equals 0.02906 L Moles of NaOH utilized equals Concentration Volume in liters *
0.385 M * 0.02906 L = 0.0112 mole of NaOH was utilized.
As per the reaction, 3 mole of OH (NaOH) are needed to neutralize 1 mole of citric acid.
Therefore, 0.0112 mole of NaOH will be needed for every 'x' mole of citric acid, where 'x' = (0.0112 mole x 1 mole) / 3 mole = 3.733 x 10-3 mole
The sample's volume = 20.0 ml (or 0.020 L),
So, in 0.020 L of sample, there is 3.733 x 10-3 mole of citric acid.
Therefore, Citric acid moles per unit volume of solution equals concentration.
(3.733 x 10-3 mole)/0.020L = 0.187 M is the molarity.
Thus, the concentration of citric acid if a 20.00 mL sample is titrated with 29.06 mL of 0.385 M sodium hydroxide is 0.187 M.
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Discuss whether each of the following is a mixture or a pure substance. If it is a mixture, please state if it homogeneous or heterogeneous. Please give your reasoning for each case. If it is difficult to tell, explain why.
1. Seawater.
2. Chocolate.
3. Table sugar.
4. An apple.
5. A sheet of paper
6. The spice paprika.
7. Seven Up.
Answers
Answer:
Pure substance:
Seven upTable sugarSeawater (H20 + NaCl + impurities)Mixtures:
Chocolate (homogeneous)Paprika spice (homogeneous)Seawater (heterogeneous, because of impurities)A sheet of paper (homogeneous)An apple (heterogeneous)Explanation:
Pure substances exists as either elements or compounds.
A homogeneous mixture has even distribution and a single phase composition of its constituents; whereas heterogeneous mixtures are not uniform and constituents exist in different phases.
When zinc reacts with copper sulfate solution, zinc sulfate solution and copper are formed.(i) An experiment was carried out to measure the temperature change when zinc powder reactswith copper sulfate solution.initial temperature of copper sulfate solution = 20 °Cfinal temperature of mixture after the reaction = 46 °CExplain what the temperature readings show about the type of heat change that occurs duringthis reaction.
Answers
The temperature increase from 20 °C to 46 °C indicates that the reaction between zinc and copper sulfate solution is exothermic, with heat being released into the surroundings.
In the given reaction between zinc and copper sulfate solution, the temperature change can provide insights into the type of heat change occurring during the reaction. Based on the provided information, the initial temperature of the copper sulfate solution was 20 °C, and the final temperature of the mixture after the reaction was 46 °C.
The temperature increase observed in this reaction indicates an exothermic heat change. An exothermic reaction releases heat energy into the surroundings, resulting in a temperature rise. In this case, the reaction between zinc and copper sulfate solution is exothermic because the final temperature is higher than the initial temperature.
During the reaction, zinc displaces copper from copper sulfate to form zinc sulfate and copper metal. This displacement reaction is known as a single displacement or redox reaction. Zinc is more reactive than copper and therefore replaces copper in the compound.
The formation of new chemical bonds during the reaction releases energy in the form of heat. This energy is transferred to the surroundings, leading to an increase in temperature. The heat released is greater than the heat absorbed, resulting in a net increase in temperature.
The exothermic nature of this reaction can be explained by the difference in bond energies between the reactants and products. The breaking of bonds in the reactants requires energy input, while the formation of new bonds in the products releases energy.
In this case, the energy released during the formation of zinc sulfate and copper metal is greater than the energy required to break the bonds in copper sulfate and zinc.
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Write the name of the molecular compound C2Br4
Answers
Answer:
Tetrabromoethylene
Explanation:
Tetrabromoethylene I guess
(30 POINTS)
Modeling the Greenhouse Effect
In this activity, you will model the greenhouse effect by graphing air temperature over time.
You will need these materials:
2 empty two-liter plastic bottles (or 2 clear plastic containers, similar in size), rinsed
2 thermometers (not mercury) that will each fit inside a bottle
a lamp with a 150-watt incandescent bulb (if direct sunlight is not available)
a measuring cup
soil (4 cups)
a roll of plastic wrap
a scissors or utility knife
clear tape
1 rubber band
6-8 ice cubes (all the same size)
Follow these steps to set up the experiment, and then answer the question in part A.
Cut off the neck of each bottle using the scissors as shown in the image. Stay safe: cut slowly and carefully so you do not cut yourself. If you’re using containers other than bottles, no cutting is needed.
Add two cups of soil to each bottle.
Place 3–4 ice cubes on top of the soil. The number of cubes must be the same in each bottle.
Tape a thermometer into the inside wall of each bottle. Stay safe: do not use mercury thermometers in the event they might break. Be sure to face the thermometer outward from the bottle for easy reading.
Cover the top of one bottle tightly with plastic wrap secured by a rubber band. Leave the other bottle open.
Position the bottles so that they are an equal distance from the lamp. (If you're not using a lamp, place the bottles in direct sunlight.) Turn the lamp on. Stay safe: To avoid electrocution, keep all water away from electrical sources.
Face the thermometers in the same direction for easy reading, as shown in the image.
a plastic bottle cut in half
two plastic bottles containing thermometers kept under a lamp
Hypothesis and Data Collection
Part B
Record the temperatures of both bottles every three minutes. Enter your results in the table. During each temperature check, note any changes you see in the ice cubes. Stop recording after 30 minutes.
Minutes
Bottle 1
(no plastic wrap)
Temperature in °F
Bottle 2
(plastic wrap)
Temperature in °F
Notes
0
3
6
9
12
15
18
21
24
27
30
Answers
When two plastic bottles containing thermometers are kept under a lamp, the temperature readings of the thermometers will vary depending on several factors. Firstly, the intensity of the lamp's light will impact the temperature readings of the thermometers.
The brighter the light, the higher the temperature reading on the thermometers will be. Additionally, the distance between the lamp and the plastic bottles will also affect the temperature readings. The closer the bottles are to the lamp, the higher the temperature readings will be.
Moreover, the material of the bottles will also play a role in the temperature readings of the thermometers. If the bottles are made of a material that is a good conductor of heat, such as metal, then the temperature readings will be higher compared to if the bottles were made of a material that is a poor conductor of heat, such as plastic.
In conclusion, when two plastic bottles containing thermometers are kept under a lamp, the temperature readings on the thermometers will be affected by various factors such as the intensity of the light, the distance between the lamp and the bottles, and the material of the bottles. Therefore, it is important to consider these factors when analyzing the temperature readings of the thermometers.
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lphins... Acid. (b) Chlorine reacts with red hot iron powder to give Iron(III) Chloride but not Iron (II) Chloride. Explain. (1Mark)
Answers
(a) Because acid is caustic, dolphins can perish from exposure to it. Acids are compounds that give other things protons (H+). Acid can react with the proteins and lipids in dolphins' skin when they come into touch with it, leading to chemical burns and damage to the underlying tissue. Systemic consequences from this include death.
(b) Because chlorine is a potent oxidizer, it interacts with red-hot iron powder to produce Iron(III) chloride (FeCl3) rather than Iron(II) chloride (FeCl2). FeCl3 is created when chlorine at high temperatures rapidly accepts electrons from iron atoms. Contrarily, iron interacts with HCl, a less potent oxidizer than chlorine, to produce FeCl2.
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The information shows the masses after the compounds are balanced.
2MgO + 2Cl2 → 2MgCl2 + ?
80g + 140g + 1889 + ?
If the following materials are used during the reaction of magnesium,
oxygen, and chlorine, what mass oxygen would we expect to see after
the reaction and why?
O A. 40g of Oz, because all mass must be conserved, it would be half of the
compound Mgo in the products
O B. 32g of Oz, because all mass must be conserved
c. 32g of Oz, because all mass must be conserved, it would be half of the
compound Mgo in the products
D. 40g of Oz, because all mass must be conserved
Answers
32g mass of oxygen would we expect to see after the reaction, because all mass must be conserved.
How we calculate the mass of any substance from moles?
Mass of any substance can be calculated from moles as:
n = W/M, where
n = moles
W = given weight or mass
M = molar mass
Given balanced complete chemical reaction is:
2MgO + 2Cl₂ → 2MgCl₂ + O₂
From the stoichiometry of the reaction it is clear that 2 moles of MgO & Cl₂ is required for the formation of 2 moles of MgCl₂ & 1 mole of O₂. Also the masses of the compound is also given for the balanced reaction as:
Mass of MgO for 2 mole = 80g
Mass of Cl₂ for 2 mole = 140g
Mass of MgCl₂ for 2 mole = 188g
So, it is clear that given masses will show conservation for their standard 1 mole of masses as mass of MgO, Cl₂ & MgCl₂ for 1 mole is 40.3g/mol, 70.90g/mol & 95.2g/mol respectively.
Hence, we conclude that mass for 1 mole of O₂ should be 32g.
Therefore, option (B) is correct i.e. 32g of O₂, because all mass must be conserved.
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–
Introduction to elapsed time
Ryan started a race at 7:08 AM and finished it at 7:46 AM.
How long did it take him?
Answers
It took him 38 minutes
The decomposition of hydrogen peroxide follows first order reaction kinetics with a rate constant k = 6.40 x 10-3 s-1.
2 H2O2(aq) ⟶ 2 H2O(l) + O2(g)
If the reaction starts with an H2O2 concentration of 6.80 M, how long will it take for the H2O2 concentration to reach 2 M?
Answers
In this first-order the decomposition reaction, the H2O2 concentration will drop from 6.80 M to 2 M in roughly 191.1 seconds.
The first-order rate equation can be used to calculate how long it will take for the hydrogen peroxide (H2O2) concentration to reach 2 M:
ln([H2O2]t/[H2O2]0) = -kt
Where:
The amount of H2O2 present at time t is known as [H2O2]t.H2O2 is initially present at a concentration of zero, and k is the rate constant.
To find t, we can rewrite the equation as follows:
t = -[ln([H2O2]t/[H2O2]0)] / k
Plugging in the given values:
[H2O2]t = 2 M
[H2O2]0 = 6.80 M
\(k = 6.40 \times 10^{(-3)} s^{(-1)\)
t = -[ln(2/6.80)] / (6.40 x 10^(-3))
Now, we can calculate the time:
t ≈ -[ln(0.2941)] / (6.40 x 10^(-3))
t ≈ -(−1.2231) / (6.40 x 10^(-3))
t ≈ 191.1 seconds
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the elements in period 4 on the peridic table are arranged in order of increasing
Answers
The elements in the 4th period on the periodic table are arranged in order of increasing their atomic number.
The function of elements in the modern periodic table?The modern periodic table can be defined as the arrangement of chemical elements. Elements are orderly arranged according to their increasing atomic number and similar chemical properties. This periodic table is organized in the forms of columns and rows which are named periods and groups.
The 118 elements are present in 18 groups and 7 periods in the modern periodic table. The elements placed in the same group and possessing the same valence electronic configuration possess identical chemical properties. Whereas the elements placed in the same period possess an increasing order of their valence electrons but the electrons are occupied in the same electron shell.
Therefore, in the modern periodic table, the elements are organized as the periodic function of their atomic number. The number of valence electrons is not increased continuously throughout the period of moving left to right.
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Proton-proton chain reaction is:
O The destruction of energy due to lost atoms
The creation of energy through the process of nuclear fusion
The sharing of energy through radioactive zone
O The decline of energy due to a solar eclipse
Answers
★Plato/Edmentum users★
The creation of energy through the process of nuclear fusion. ✔
Have a good day fellow cheaters :)♡
Answer:
B
Explanation:
what is the gram of hydrogen in periodic table?
Answers
Answer:
This is your answer
Hope it helps!!!
Write the empirical formula of at least four binary ionic compounds that could be formed from the following ions:
Mg2+, V5+, Br-, S2-
Answers
Answer: \(MgS\), \(MgBr_2\), \(V_2S_5\) and \(VBr_5\) are four binary ionic compounds that could be formed.
Explanation:
For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.
Mg is having an oxidation state of +2 called as \(Mg^{2+}\) cation and \(S^{2-}\) is an anion with oxidation state of -2. Thus they combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral \(MgS\). Also \(Mg^{2+}\) cation and \(Br^{-}\) can combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral \(MgBr_2\).
Also Vanadium is having an oxidation state of +5 called as \(V^{5+}\) cation and \(S^{2-}\) is an anion with oxidation state of -2. Thus they combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral \(V_2S_5\). Also \(V^{5+}\) cation and \(Br^{-}\) anion can combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral \(VBr_5\).
The nucleus of a atom is
Answers
HURRRYYY !!!!!
Which of these statements best describe how Kennedy Space Center benefits Florida? It helps to
decrease immigration in Florida.
increase unemployment in Florida.
decrease the income from sale of goods in Florida.
increase Florida's average income per person.
Answers
Answer:
The correct answer is - increase Florida's average income per person.
Explanation:
Kennedy Space Center established by NASA helped the boosting economy of Florida. Spaceport operations in Kennedy Space Center benefit Florida by a total economic impact of nearly $4 billion on Florida's economy.
This space center helped in the 7,639 jobs in 2018 and 2019 and 37 new space operation companies. These jobs increased Florida's average income per person above $91,000.
A 300.0 mL quantity of hydrogen is collected over water at 19.5 C and a total atmospheric pressure of 750. mm Hg. The partial pressure of water at this temperature is 17.0 mm Hg
Answers
The partial pressure of hydrogen in the collected gas sample is 733.0 mm Hg (calculated by subtracting the partial pressure of water, 17.0 mm Hg, from the total atmospheric pressure, 750.0 mm Hg).
When a gas is collected over water, the presence of water vapor affects the total pressure observed. In this case, the total atmospheric pressure is given as 750.0 mm Hg, and the partial pressure of water vapor at 19.5°C is 17.0 mm Hg.
To determine the partial pressure of hydrogen, we need to subtract the partial pressure of water vapor from the total atmospheric pressure. Partial pressure refers to the pressure exerted by an individual gas component in a mixture. In this scenario, the collected gas is primarily hydrogen, with water vapor being the other component.
By subtracting the partial pressure of water vapor (17.0 mm Hg) from the total atmospheric pressure (750.0 mm Hg), we can find the partial pressure of hydrogen:
Partial pressure of hydrogen = Total atmospheric pressure - Partial pressure of water vapor
Partial pressure of hydrogen = 750.0 mm Hg - 17.0 mm Hg
Partial pressure of hydrogen = 733.0 mm Hg
Therefore, the partial pressure of hydrogen in the collected gas sample is 733.0 mm Hg.
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The specific gravity of a patient's urine sample was measured to be 1.008. Given that the density of water is 1.000 g/mL at 4°C, what is the density of the urine sample at 4°C
Answers
Answer:
1.008 g/mL
Explanation:
The specific gravity of any substance is the ratio of that substance's original density to the density of the referential substance, in this case, water at 4°C, which is 1.000 mL.
So we have the original density to be 1.008 g/mL, the specific gravity would also be 1.008 g/mL
The density of the urine sample at 4°C is 1.008 g/mL.
The specific gravity of a substance is the ratio of its density to the density of water. In this case, the specific gravity of the urine sample is 1.008, which means that its density is 1.008 times that of water.
Since the density of water is 1.000 g/mL, the density of the urine sample can be calculated as follows:
Density of urine sample = Specific gravity × Density of water
Density of urine sample = 1.008 × 1.000 g/mL
Density of urine sample = 1.008 g/mL
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if I am on a bus and I'm relative to A the student sitting next to me B relative to the house the bus goes by?
Answers
Charged Particles
Charge on Particle Number of Particles
Positive 3
Negative 2
A negatively charged substance is brought near the ion. What will most likely happen?
(A) The negatively charged ion will repel the substance.
(B) The negatively charged ion will attract the substance.
(C) The positively charged ion will repel the substance.
(D) The positively charged ion will attract the substance.
Answers
Answer:
D
Explanation:
cause overall charge is +1 so will attract
Strontium hydroxide reacts with hydrobromic acid to produce Strontium bromide and
water.
Write and balance the chemical reaction above, use it for problems 1-4 below:
1. If 5.50 moles of strontium hydroxide were consumed, how much moles of water are
produced?
2. Find the mass of hydrobromic acid used to produce 7.50 moles water.
3. If 10.8 g of strontium hydroxide were used, how much moles of strontium bromide are
produced?
4. If 13.3 g of hydrobromic acid were consumed, find the mass of the water produced.
Answers
Sr(OH)2 + 2 HCl --> SrCl2 + 2 H2O
To find the moles of water produced when 5.50 moles of strontium hydroxide are consumed, we need to apply the law of conservation of mass. The mass of water produced is equal to the mass of strontium hydroxide consumed. Since strontium hydroxide has a molar mass of 142 g/mol and water has a molar mass of 18 g/mol, 1 mol of strontium hydroxide can produce 9 mol of water. Therefore, 5.50 moles of strontium hydroxide can produce 49.5 mol of water.
Similarly, 7.50 moles of water can be produced by reacting 18 moles of hydrobromic acid with strontium hydroxide. Hydrobromic acid has a molar mass of 79.9 g/mol, so 18 moles of hydrobromic acid would have a mass of 79.9 * 18 = 1435.2 g.
To find the moles of strontium bromide produced when 10.8 g of strontium hydroxide is used, we need to apply the law of conservation of mass again. The mass of the strontium bromide produced is equal to the mass of strontium hydroxide consumed. Since strontium bromide has a molar mass of 410 g/mol and strontium hydroxide has a molar mass of 142 g/mol, 1 mol of strontium bromide can consume 3.23 moles of strontium hydroxide. Therefore, 10.8 g of strontium hydroxide can produce 10.8 / 3.23 = 3.34 moles of strontium bromide.
Finally, to find the mass of water produced when 13.3 g of hydrobromic acid is consumed, we need to apply the law of conservation of mass yet again. The mass of the water produced is equal to the mass of hydrobromic acid consumed. Since hydrobromic acid has a molar mass of 79.9 g/mol, 13.3 g of hydrobromic acid would produce 13.3 / 79.9 = 0.166 moles of water.
Calculate the volume of 2.408x1024 molecules of water vapor at STP.
89.00 L
90.00L
89.61 L
89.60 L
Answers
Answer:
B
Explanation: im not rlly sure you can go with what i said or you dont
Which has the smallest dipole-dipole forces?
O NO
ОСН3СІ
OHCI
O H2
Answers
Answer:
oxygen liquid
Explanation:
50 points
Which elemental family receives electrons in an ionic bond?
Responses
noble gases
metals
halogens
nonmetals
Answers
Answer: es no metales
Explanation: