Other Chemistry Answers

13: A sample of carbon dioxide gas occupies 584 mL at 0.856 atm and 10 ◦C. What will the pressure be at a volume of 835 mL and a temperature of 24 ◦C? Answer in units of atm.

14: At 110◦C, the pressure of a sample of nitrogen is 1.78 atm. What will the pressure be at 267◦C, assuming constant volume? Answer in units of atm.

15: Suppose that 5.6 L of methane at a pressure of 876 Torr is transferred to a vessel of volume 4.1 L. What is the final pressure of methane if the change occurs at constant temperature? Answer in units of Torr.

6: An empty aerosol-spray can at room temperature (20 ◦C) is thrown into an incinerator

where the temperature reaches 605◦C. If the

gas inside the empty container was initially at

a pressure of 1 atm, what pressure did it reach

inside the incinerator? Assume the gas was at

constant volume and the can did not explode.

Answer in units of atm.

9: To what temperature must a sample of helium

gas be cooled from 111◦C to reduce its volume

from 4.7 L to 0.77 L at constant pressure?

Answer in units of K.

11: A 757 mL gas sample at STP is compressed to

a volume of 275 mL, and the temperature is

increased to 34◦C. What is the new pressure

of the gas in Pa?

Answer in units of Pa.

The pressure of a sample of helium in a 1.0L container is 0.98 atm. What is the new pressure if the sample is placed in a 2.0

L container?

Law being used: ___________ FORMULA WORK ANSWER

Given 1:__________

Given 2:__________

Given 3:__________

2: An aerosol can contains gases under a pressure

of 4.6 atm at 23 ◦C. If the can is left on a

hot sandy beach, the pressure of the gases

increases to 4.78 atm. What is the Celsius

temperature on the beach?

Answer in units of ◦C

4: The volume of a gas is 22.6 mL at 46◦C and

0.82 atm. What will the volume be at 15◦C

and 0.996 atm?

Answer in units of mL. 5: The volume of a gas at 25◦C and 0.29 atm

is 83 mL. What volume will the same gas

sample occupy at standard conditions?

Answer in units of mL.

6: A sample of an ideal gas occupies 215 mL at

31.2

◦C and 714 torr.

What is its volume at STP?

calculate how much energy is release when 755 grams of copper cools from 125.0C to 19.0C

A 3.0 g sample of an alloy containing lead and tin is dissolved in nitric acid. An excess of

sulfuric acid is then added to the mixture, resulting in the formation of 2.37 g of a precipitate.

Identify the precipitate which is being formed.

What is the molarity of acetic acid in vinegar?

If volume of vinegar sample is 5.00ml, molarity of NaOH is .25M, initial reading is .25ml and final reading is 17.50ml

How many grams of aluminum dichromate are formed from the double displacement reaction between 107.5g of aluminum nitrate and excess sodium dichromate? The products are aluminum dichromate and sodium nitrate (show work)

When heated, KClO3 decomposes into KCl and O2.


2KClO3= 2KCl + 3O2

If this reaction produced 17.2 g of KCl, how many grams of O2 were produced?

How many moles of nitrogen dioxide, NO2, are needed to react with 2.83 moles of water, H2O?





4 NO2(g) + 6 H2O(g) → 7 O2(g) + 4 NH3(g)