Compound C has a molecular formula of C4H8O2. What is the Unsaturation Number (UN) or Double-Bond Equivalent (DBE)? Number LOD Based on the UN/DBE you calculated, could there be a double bond in compound C? yes no 50 Based on the UN/DBE you calculated, could there be a ring in compound C? yes no Examine the IR spectrum provided for Compound C The peaks below 1500 cannot be used to make any structural assignments because they are in the fingerprint region There are a few important peaks in this IR spectrum. What is each peak most likely due to? Hint:the large peak that streches from 2500-3500 is actually two peaks: there is a sharp peak around 3000 that is mostly hiddern 6H
Answers
The large peak stretching from 2500-3500 could be due to the O-H stretch from an alcohol or carboxylic acid, and the sharp peak around 3000 could be due to a C-H stretch from sp3 hybridized carbon.
The molecular formula of compound C is C4H8O2. To calculate the Unsaturation Number (UN) or Double-Bond Equivalent (DBE), we use the formula:
DBE = C - (H/2) + (N/2) + 1
In this case, we have 4 carbon atoms, 8 hydrogen atoms, and 0 nitrogen atoms, so the calculation is:
DBE = 4 - (8/2) + (0/2) + 1 = 4 - 4 + 0 + 1 = 1
The Unsaturation Number (UN) or Double-Bond Equivalent (DBE) for compound C is 1.
Based on the UN/DBE you calculated, there could be a double bond in compound C.
Based on the UN/DBE you calculated, there could also be a ring in compound C.
As for the IR spectrum, the large peak stretching from 2500-3500 could be due to the O-H stretch from an alcohol or carboxylic acid, and the sharp peak around 3000 could be due to a C-H stretch from sp3 hybridized carbon.
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Related Questions
Answer quick cause its time
How do gamma rays differ from alpha particles and beta particles?
a)How do gamma rays differ from alpha particles and beta particles?
b)Gamma rays and alpha particles result in the formation of new atoms, but beta particles do not.
c)Alpha particle and beta particle emissions result in the formation of new atoms, whereas gamma ray emissions do not.
d)Gamma rays have mass, whereas alpha and beta particles do not.
Answers
Answer:
While alpha and beta rays have energy and mass, gamma rays are pure energy.
The electron configuration of an element is 1s22s22p6. Describe what most likely happens when an atom of this element comes near an atom having seven valence electrons.
Answers
Answer: Nothing will happen
Explanation:
Elements want to fill their valence shell with electrons (8).
Referring to both of the table below we will know that the element with that electron configuration is Neon (Ne). It is on the far right side of the periodic table so it contains all 8 electrons in its valence shell. The elements on the right side of the periodic table are called noble gases and are not reactive because they have the maximum number of electrons.
A single electron from the outermost shell of this element will move into the outermost shell of the atom with seven electrons.Nothing will happen in these state.
What is an electronic configuration ?Electron configurations define the arrangement of electrons around an atom's nucleus. Lithium, for instance, contains two electrons in the 1s subshell and one electron in the 2s subshell, according to its electron configuration, 1s22s1.
We may determine that Neon is the element with that electron configuration by looking at both of the tables below (Ne). It has all 8 electrons in its valence shell since it is on the extreme right side of the periodic table.
Noble gases are the elements on the right side of the periodic table that contain the most electrons and are thus non-reactive.
Thus, Electronic configuration an element is 1s22s22p6, it is stable.
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How many moles of methanol must be burned to release 1454 KJ of energy
Answers
A student put a bottle of water and a can of sugared soda in the freezer to chill them quickly. when she took them out, the bottle of water was frozen but the can of soda was not. explain why this happened.
Answers
The soda water didn't freeze because of the depression in freezing point as compared to the water.
What is Freezing Point Depression ?When a solute is added to a pure solvent , then the value of freezing point is reduced.
The decrease in the freezing point is directly proportional to the molality of the solute.
It is given in the question that
A student put a bottle of water and a can of sugared soda in the freezer to chill them quickly.
when she took them out, the bottle of water was frozen but the can of soda was not.
It is because water is the pure solvent , so freezing point is fixed but the soda water has sugar and Carbon Di oxide along with the solvent water , the presence of the sugar and Carbon -di-oxide decreases the freezing point of the soda water and so it doesn't freezes.
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Other nuclear problems:
1. Carbon-14 has a half-life of 5,730 years. How old is a fossil with 4 g of citit initally started with
32 g of "C?
Answers
Carbon-14 has a half-life of 5,730 years. A fossil with 4 g of C initially started with 32 g of C is 17200 years old.
Half life of a substance tells about how much time taken by a sample to reduced to 50%.
The 32g of C is decayed and it remains 4g of it. Since carbon decays follows first order reaction. To find out the age of fossil, we need to use the formula which is given as
ln(N_t/N_0)=-λt(i)
Where, N_t = 4g
N_0 = 32 g
We need to find λ using half life of carbon which is given as
λ=(0.693/t(1/2))
where t(1/2)=5730 years
Plug all values in the formula
λ=(0.693 year⁻¹/5730)
λ=0.0012094 year⁻¹
Plug all the available values in the equation (i)
ln(4 g/32 g)=-0.00012094 year⁻¹×t
ln(0.125)=-0.00012094 year⁻¹×t
-2.07944=-0.00012094 year⁻¹×t
t=(-2.07944 year/-0.00012094)
t = 17193.9805 year
t = 17200 year
Therefore, a fossil with 4 g of C initially started with 32 g of C is 17200 years old.
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A sample of gas with fixed amount is compressed to one-half of its initial volume at constant temperature. What is the final pressure of the gas? O The final pressure is the same as the initial pressure. The final pressure is twice the initial pressure. O The final pressure is four times the initial pressure. O The final pressure is one-half the initial pressure. O The final pressure is one-fourth the initial pressure.
Answers
Given that a sample of gas with fixed amount is compressed to one-half of its initial volume at constant temperature. We have to determine the final pressure of the gas.
The final pressure is twice the initial pressure.Explanation:From the Boyle's law, we know that pressure is inversely proportional to volume. That is, as the volume decreases, the pressure will increase. This relationship is given by;P₁V₁ = P₂V₂
where,P₁ = Initial pressureV₁ = Initial volumeP₂ = Final pressureV₂ = Final volumeSince the sample of gas is compressed to one-half of its initial volume, then V₂ = 1/2 V₁Substituting these values in the above equation, we have;P₁V₁ = P₂V₂P₁V₁ = P₂(1/2 V₁)2P₁V₁ = 2P₂V₁P₁ = 2P₂Therefore, the final pressure is twice the initial pressure.
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F. If 20.0 moles of CO2 is exhaled, how many particles of H2O is produced?
Answers
Answer:
11 moles
Explanation:
1 mole of C12H22O11 molecules produces 12 moles of CO2 molecules and 11 moles of H2O molecules.
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What is 155.4/8.70 mL rounded to the correct number of significant figures?
a 18 g/mL
b 20 g/ml
C 17.9 g/ml
D 17.86 g/mL
Answers
Answer:
17.86g/ml[d]
Explanation:
155.4g/8.70=d
d=17.86g/ml
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Which of these pathogens can be killed by antibiotics?
A) viruses
B) Bacteria
C) Both Bacteria and Viruses
D) Fungi, Bacteria, and Viruses
Answers
Answer:
it's c.
Explanation:
hope this helps
Question 1 of 10
Which two factors affect the amount of thermal energy an object has?
A. The directions in which its particles are moving
B. The mass of the object
O C. The amount of motion its particles have
D. The amount of space between its particles
Answers
Answer:
b, and d
Explanation:
because it makes the most sense I might be wrong
You have nitrogen gas (N2) at a pressure of 0.5 atm, a volume of 25000 mL, and a temperature of 300 K, how many grams of nitrogen are present?
Answers
Answer:
About 7.109g
Explanation:
25000mL is the same as 25 liters.
\(PV=nRT \\\\0.5 (25)=n (0.0821) (300) \\\\n\approx 0.508\)
Multiplying this by the molar mass of nitrogen, you get about 7.109 grams of nitrogen. Hope this helps!
what functional groups are involved in forming a peptide bond
Answers
The functional groups that are involved in forming a peptide bond are the amine group (-NH2) and the carboxyl group (-COOH).
The formation of a peptide bond involves two functional groups: the carboxyl group (-COOH) of one amino acid and the amino group (-NH2) of another amino acid. During the process, a condensation reaction occurs, resulting in the release of a water molecule. The carboxyl group of one amino acid donates a hydrogen atom (H) to the amino group of the adjacent amino acid, creating a peptide bond and forming a dipeptide. This process can continue through multiple amino acids, leading to the formation of longer polypeptide chains. Peptide bonds are crucial for the structural and functional integrity of proteins in living organisms. Proteins, which are made up of one or more polypeptide chains, are the most common type of biomolecules in living organisms.
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A hydrate of zinc nitrate has the formula Zn(NO3)2 . xH2O. If the mass of 1 mol of anhydrous zinc nitrate is 63.67% of the mass of 1 mol of the hydrate, what is the value of x?
Answers
MM Zn(NO₃)₂ = 189.36 g/mol
mass 1 mol Zn(NO₃)₂ = 189.36 g
mass hydrate = 100 / 63.67 x 189.36 = 297.409 g
mass 1 mol hydrate = 297.409 g
MM hydrate = 297.409 g/mol
MM hydrate = MM Zn(NO₃)₂ + MM xH₂O
297.409 = 189.36 + x(18)
x = 6
g sio2 is a(n) covalent network solid. ki is a(n) -- solid. ti is a(n) -- solid. c6h12o6 is a(n) -- solid.
Answers
The kinds of the solids are;
SiO2 - Covalent network solid
C6H12O6 - Covalent solid
KI - Ionic solid
What is a covalent network solid?
A covalent network solid, often referred to as a network covalent solid or just a network solid, is a category of solid material in which the atoms that make up the material are strongly covalently linked to one another, forming an extended three-dimensional network structure.
Covalent network solids are kept together by a dense network of covalent bonds, as opposed to molecular or ionic solids, which are held together by weaker intermolecular forces or ionic interactions, respectively.
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Question 1 (1 point)
A new element has been discovered at Archer High School. The element symbol is Zz
and it has 2 naturally occurring isotopes.
The first isotope has a mass of 85.96 amu and a percent abundance of 87.20%.
The second isotope has a mass of 86.78 amu.
What is the average atomic mass of element Zz? Round to the hundredth's place
(0.01 or 2 decimal places).
Your Answer:
Answer
units
Answers
Answer:
86.06 amu is the average atomic mass of element Zz.
Explanation:
We may find the average atomic mass of Zz with a simple thought experiment. Let's imagine that we were given 100.0 grams of Zz. We know that 87.20% of that 100.0 grams is an isotope having 85.96 AMU (atomic mass units). That means the other 12.80% must be the isotope with 86.78 AMU.
Since we picked 100.0 grams, it is easy to see that we would have:
87.2 grams of 85.96 AMU, and
12.8 grams of 86.78 AMU
-----------
100.0 grams total
The contribution of each isotope can be calculated by taking it's percent abundance times it's AMU andf then adding the total results:
AMU % Contribution to total AMU
85.96 87.2 74.96
86.78 12.8 11.11
-------- --------- -----------
100.0 86.06 amu
The sum of the two weighted averaged amu numbers is the average atomic mass of element Zz. [Element Zz has a good futire as a sleep aid.]
How many Joules of energy are given off when 50 grams of water are cooled from 65-50 degrees Celsius?
3200
3138
47.83
Answers
Answer:
3200
Explanation:
because it would book it up first to evaporate it next
Use the following equations to determine the heat of the reaction of:
N2H4(l) + H2(g) --> 2NH3(g) ΔH=?
N2H4(l) + CH4O(l) → CH2O(g) + N2(g) + 3H2(g) ΔH = -37
kJ N2(g) + 3H2(g) → 2NH3(g) ΔH = -46
kJ CH4O(l) → CH2O(g) + H2(g) ΔH = -65 kJ
Answers
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Answer to Question #96220 in Molecular Physics | Thermodynamics for Kaleesh
Answers>Physics>Molecular Physics | Thermodynamics
Question #96220
a) Determine the enthalpy changes, ΔH for the reaction below, given the following reactions and subsequent ΔH values. Please rewrite the amended chemical reaction equation again.
N2H4 (l) + CH4O (l) CH2O (g) + N2 (g) + 3H2 (g)
2NH3 (g) N2H4 (l) + H2 (g) ΔH = 22.5kJ
2NH3 (g) N2 (g) + 3H2 (g) ΔH = 57.5 kJ
CH2O (g) + H2 (g) CH4O (l) ΔH = 81.2 kJ
b) Given that the enthalpy of vaporization for water as below:
H2O (l) H2O (g) ΔH vap = 44.0 kJ mol-1
Calculate enthalpy ΔH for each of the following processes:
i) Evaporating 3.00 moles of water
ii) Evaporating 3.00 grams of water
i) Condensing 20.0 grams of water
(3 Marks)
c) Use the enthalpy of formation data to calculate the enthalpy of the reaction below.
2C2H6 (g) + 7O2 6H2O (g) + 4CO2 (g)
______ and _______ factors can affect in an organisms traits.
Answers
Answer:
Environmental factors such as diet, temperature, oxygen levels, humidity, light cycles, and the presence of mutagens can all impact which of an animal's genes are expressed, which ultimately affects the animal's phenotype.
Explanation:
A protein is a polymer that is made of
Answers
Answer:
A protein is a polymer that is made of amino acids.
Plz help!
What is 1 item that is an element?
Give an example of how the 1 item is an element.
Answers
Answer:
Carbon. This item is an element because it is on the periodic table.
Explanation:
Anything on the periodic table is an element.
If you triple the force on an object , the acceleration will
a
reduced by 1/3
b
double
c
tripled
d
halve
Answers
Answer:
C triple
Explanation:
please crown me
Rank the following atoms according to decreasing first ionization energy. (i.e. 1 = highest and 4 = lowest)
Options are Al, P, Mg, K?
Answers
The decreasing order of ionization energy will be Mg >Al >P>K.
Ionization energy sometimes referred to as ionization potential, would be the amount of energy it takes to eliminate an electron from a single, isolated atom or molecule.
On moving top to bottom in the periodic table, ionization energy will decrease rapidly.
Al =13 (group 3)
P =15 (group 5)
Mg =12 (group 2)
K =19 (group 1)
The decreasing order of ionization energy will be Mg >Al >P>K.
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How many total electrons can the p orbitals hold?
A. 6
B. 2
C. 10
D. 3
Answers
Answer:
A. 6
Explanation:
hope it helps
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Answer:
A.6 electrons.
Explanation:
What can a swarm of grasshoppers do to a farmers crop?
Answers
It could destroy the crops by jumping all over them
function of the amount of drug given, x, and the time since injection, t. For 06 mg and t> 0 hours, we have
C = f(x,t) = 28te-(6-x)t
f(2,3)=
Give a practical interpretation of your answer: f(2, 3) is
o the concentration of a 3 mg dose in the blood 2 hours after injection.
o the amount of a 2 mg dose in the blood 3 hours after injection.
o the amount of a 3 mg dose in the blood 2 hours after injection.
o the concentration of a 2 mg dose in the blood 3 hours after injection.
o the change in concentration of a 3 mg dose in the blood 2 hours after injection.
o the change in concentration of a 2 mg dose in the blood 3 hours after injection.
Answers
The practical interpretation is that f(2, 3) represents the concentration of a 2 mg dose in the blood 3 hours after injection.
To evaluate the expression f(2, 3) using the provided function \(84e^-12\), we substitute x = 2 and t = 3 into the function.
\(f(2, 3) = 28(3)e^-(6-2)(3)\)
\(= 84e^-12\)
Practical interpretation: f(2, 3) represents the concentration of a 2 mg dose in the blood 3 hours after injection.
The given function \(f(x, t) = 28te^-(6-x)t\) provides the concentration of a drug in the blood based on the amount of drug given (x) and the time since injection (t). In this case, x is the dose of the drug in milligrams, and t is the time in hours.
So, when we evaluate f(2, 3), it means we are finding the concentration of a 2 mg dose in the blood 3 hours after injection. By substituting x = 2 and t = 3 into the function, we calculate the result as \(84e^-12\).
Therefore, the practical interpretation is that f(2, 3) represents the concentration of a 2 mg dose in the blood 3 hours after injection.
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The prime implicant which has at least one element that is not present in any other implicant is known as.
Answers
The prime implicant which has at least one element that is not present in any other implicant is known as a "prime implicant cover.
In Boolean algebra, when we have multiple prime implicants that cover all the minterms (inputs) of a function, we can combine them to form a prime implicant cover. The prime implicant cover is the combination of prime implicants that includes all the minterms of the function and has the minimum number of terms possible.
For example, let's consider a Boolean function with three variables A, B, and C. If we have the following prime implicants: AB, BC, and AC, and these implicants cover all the minterms of the function, then the combination of these prime implicants (AB + BC + AC) would be the prime implicant cover.
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anyone wanna help me plese
An atom of lithium (Li) and an atom of fluorine (F).
What do you notice about the number of valence electrons in each?
How could these two atoms make each other “happy”?:
Would they still be neutral?:
Answers
Answer:
Lithium gives up its one electron to make both atoms happy. So the fluorine atom has eight electrons, and a filled outer shell.
Coal contains carbon and other elements. Carbon dioxide forms when coal burns in the presence of oxygen. Which of these is the best evidence that a chemical reaction occurs when coal burns? Select one: A new substance is produced. Coal is made up of more than one element The shape of the coal changes. Oxygen is present.
Answers
Answer:
a new substance is produced
Explanation:
i just took my test and got this question right
The best evidence that a chemical reaction occurs when coal burns is a new substance is produced. The correct option is A.
What is coal?Coal is a carbon containing fossil fuel, which is formed when the organic matter is decomposed inside the earth with heat and pressure by the earth crust. It is the most used fossil fuel.
Carbon dioxide is a gas produce when these fossils fuel burned. It is a green house gas and increase the warmth of the earth when produced. It is taken by plants to make their food.
When coal burns, it produces carbon dioxide which is a gas and coal is a solid, so here the chemical reaction is happening which is producing a new substance.
Thus, the correct option is A. A new substance is produced.
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Which conclusion do the graphs support?
Phosphorus is required for the growth of the phytoplankton.
Phosphorus is required for the growth of the phytoplankton.
Phytoplankton cannot withstand high levels of phosphorus present in the estuary.
Phytoplankton cannot withstand high levels of phosphorus present in the estuary.
Phosphorus harms the growth of phytoplankton in the estuary.
Phosphorus harms the growth of phytoplankton in the estuary.
Phytoplankton growth does not depend on the amount of phosphorus.
Phytoplankton growth does not depend on the amount of phosphorus.
Answers
Answer:
Phosphorus is required for the growth of the phytoplankton.
Explanation:
1.What are 4 things that are increasing Earth's temperatures? 2. What are 4 things we can do to on a personal level to help?
Answers
Answer:
Hey there!
Four things increasing temperature:
Cars, Busses, Motorcycles
Greenhouse Gases
Factories
Non-renewable energy sources
Four things we can do:
Ride a bike instead of a car
Try using solar panels, and wind energy
Turn off lights when leaving a room
Try reusing and recycling.
Let me know if this helps :)