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shusha [124]
3 years ago
13

In this experiment you will measure the stretching frequencies of different functional groups in a series of organic molecules.

Then you will compute the spectra in Gaussian. The computed spectra will be calculated in the gas phase. How is that going to affect the calculations
Chemistry
1 answer:
Elis [28]3 years ago
5 0

Answer:

If infrared radiation of a given frequency strikes a sample composed of molecules having a vibrational frequency the same as that of the incident radiation, the molecules absorb radiation and the energy of the molecule is increased. However, if the incident frequency differs from the characteristic frequencies of the molecule, the radiation passes through undiminished, or in some experiments, it is reflected. The vibrational frequencies for a particular molecule are determined primarily by the masses of the atoms in the molecule and the strengths of the bonds connecting them. For a diatomic molecule, this frequency can be derived from Hooke's law and is written as:

F=1/2pi*(w/k)^1/2

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A can of butane with a pressure of 2 atm at 283k has its pressure increased to a new pressure of 5 atm. What is the temperature
Ber [7]

Answer:

New temperature T2 = 707.5 K (Approx.)

Explanation:

Given:

Old pressure P1 = 2 atm

Old temperature T1 = 283 K

New Pressure P2 = 5 atm

Find:

New temperature T2

Computation:

Using Gay-Lussac law;

P1 / T1 = P2 / T2

So,

2 / 283 = 5 / T2

New temperature T2 = 707.5 K (Approx.)

6 0
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balandron [24]

Answer:

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Explanation:

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8 0
3 years ago
Is the law of conservative mass observed in this equation CaCO3 + 2HCI -->CaCI2 +H2O + CO2
pychu [463]

Answer:

The law is observed in the given equation.

Explanation:

CaCO₃ + 2HCI → CaCI₂ +H₂O + CO₂

In order to find out if the law of conservative mass is followed, we need to <u>count how many atoms of each element are there in both sides of the equation</u>:

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  • O ⇒ 3 on the left, 3 on the right.
  • H ⇒ 2 on the left, 2 on the right.
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As the numbers for all elements involved are the same, the law is observed in the given equation.

8 0
3 years ago
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Advocard [28]

Explanation:

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5 0
2 years ago
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bonufazy [111]

Answer:

Element Symbol Mass Percent

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Explanation:

I got this out of my module, sorry if it's wrong but i am pretty sure 97% this is correct!

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