Questions from General Chemistry

Q: Make the indicated pressure conversions. a. 1.54

Make the indicated pressure conversions. a. 1.54 * 105 Pa to atmospheres b. 1.21 atm to pascals c. 97,345 Pa to mm Hg d. 1.32 kPa to pascals

Q: Given each of the following sets of values for three of the

Given each of the following sets of values for three of the gas variables, calculate the unknown quantity. a. P = 1.034 atm; V = 21.2 mL; n = 0.00432 mol; T =? K b. P =? atm; V = 1.73 mL; n = 0.0001...

Q: Describe, on a microscopic basis, the processes of evaporation and

Describe, on a microscopic basis, the processes of evaporation and condensation. Which process requires an input of energy? Why?

Q: Which of the following statements about intermolecular forces is(are)

Which of the following statements about intermolecular forces is(are) true? a. London dispersion forces are the only type of intermolecular force that nonpolar molecules exhibit. b. Molecules that ha...

Q: Which of the following statements is(are) true?

Which of the following statements is(are) true? a. LiF will have a higher vapor pressure at 25 °C than H2S. b. HF will have a lower vapor pressure at 250 °C than HBr. c. Cl2 will have a higher boil...

Q: A 22-g sample of neon gas exerts a pressure of

A 22-g sample of neon gas exerts a pressure of 2.0 atm at a certain temperature and volume. What pressure does a 44-g sample of argon gas exert at these conditions of temperature and volume?

Q: If 3.20 g of nitrogen gas occupies a volume of

If 3.20 g of nitrogen gas occupies a volume of 1.71 L at 0 °C and a pressure of 1.50 atm, what would the volume become if 8.80 g of nitrogen gas were added at constant conditions of temperature and pr...

Q: An aluminum can contain a small amount of water and is boiled

An aluminum can contain a small amount of water and is boiled with the lid removed. The heat is then turned off, and the can is sealed. Over time, the can crumples. a. Why doesn’...

Q: A mixture at 33 °C contains H2 at 325 torr,

A mixture at 33 °C contains H2 at 325 torr, N2 at 475 torr, and O2 at 650. torr. a. What is the total pressure of the gases in the system? b. Which gas contains the greatest number of moles?

Q: You have two rigid gas cylinders. Gas cylinder A has a

You have two rigid gas cylinders. Gas cylinder A has a volume of 48.2 L and contains N2(g) at 8.35 atm at 25 °C. Gas cylinder B has a volume of 22.0 L and contains He(g) at 25 °C. When the two cylinde...