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vladimir1956 [14]
3 years ago
5

You have a gas at 453 mm Hg with a volume of 700 mL and a temperature of 25 °C, what will the temperature of the gas be, if you

change the pressure to 278 mm Hg and a volume of 1200 mL?
Chemistry
1 answer:
jonny [76]3 years ago
7 0
The  temperature  of  a  the gas    is  calculated using   combined  gas  law  formula that is  P1V1/T1  = P2V2/T2
P1  =  453mmhg
V1=  700ml
T1  = 25  +  273  =  298k
P2 = 278 mmhg
V2 = 1200ml
T2=  ?

T2  is therefore  = T1 P2V2/p1V1
=  298   x278   x1200/  453  x  700  =  313.5 K
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Explain what happens to temperature and energy as molecules move from gas to liquid to solid
aleksley [76]

Answer and Explanation:

As the temperature of the substances increases, the average energy of the molecules increases, and average energy of attraction between the molecules decreases consequently intermolecular spacing between the molecules increases. As a result, a substance change in succession from gas to liquid to solid.

7 0
3 years ago
Given this reaction, N2O4(g) 2NO2(g), what shifts will occur if Q = K?
MAXImum [283]

Answer:

It shifts to the left

Explanation:

7 0
3 years ago
Which is the stronger acid in each of the following pairs? Explain your reasoning.
Makovka662 [10]

Answer:p-hydroxybenzaldehyde is stronger acid to phenol

para-cyanophenol is stronger acid to meta-cyanophenol

o-fluorophenol is stronger acid to p-fluorophenol.

Explanation:

The PKa tool relative to Ph are used to contrast the pairs.

The pKa of phenol is 10. The pKa of p-hydroxybenzaldehyde is 9.24

The pKa for meta-cyanophenol is 8.61 and the pKa for para-cyanophenol is 7.95. 

The pKa value of o-fluorophenol is 8.7, while that of the p-fluorophenol is 9.9. It's obvious that the inductive effect is more dominant at ortho-position, which results in a more acidic nature

The pKa is the pH value at which a chemical species will accept or donate a proton. The lower the pKa, the stronger the acid and the greater the ability to donate a proton in aqueous solution.

6 0
3 years ago
Helpp me pretty please
lubasha [3.4K]
Im pretty sure the answer is distance and mass
4 0
2 years ago
Read 2 more answers
Which volume of 0.10m naoh exactly neutralizes 15.0 milliliters of 0.20m hno3?
JulsSmile [24]
The balanced chemical reaction is:

HNO3 + NaOH = NaNO3 + H2O

We are given the amount and concentration of the reactants. The values given will be the starting point.

0.20 mol /L HNO3 (.015 L) (1 mol NaOH / 1 mol HNO3) = 0.003 mol NaOH

0.003 mol NaOH / 0.10 mol/ L NaOH = 0.03 L NaOH or 30 mL NaOH
7 0
3 years ago
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