Questions from General Chemistry

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

Which of the following statements is(are) true? a. If the number of moles of a gas is doubled, the volume will double, assuming the pressure and temperature of the gas remain constant. b. If the tempe...

Q: Determine the pressure in a 125-L tank containing 56.

Determine the pressure in a 125-L tank containing 56.2 kg of oxygen gas at 21 °C.

Q: What volume will 2.04 g of helium gas occupy at

What volume will 2.04 g of helium gas occupy at 100. °C and 785 mm Hg pressure?

Q: Which of the following molecules contain polar covalent bonds? a

Which of the following molecules contain polar covalent bonds? a. phosphorus, P4 b. oxygen, O2 c. ozone, O3 d. hydrogen fluoride, HF

Q: At what temperature (in °C) will a 5.

At what temperature (in °C) will a 5.00-g sample of neon gas exert a pressure of 1.10 atm in a 7.00-L container?

Q: Suppose that a 1.25-g sample of neon gas

Suppose that a 1.25-g sample of neon gas is confined in a 10.1-L container at 25 °C. What will be the pressure in the container? Suppose the temperature is then raised to 50 °C. What will the new pres...

Q: Suppose that 1.29 g of argon gas is confined to

Suppose that 1.29 g of argon gas is confined to a volume of 2.41 L at 29 °C. What would be the pressure in the container? What would the pressure become if the temperature were raised to 42 °C without...

Q: What will the volume of the sample become if 459 mL of

What will the volume of the sample become if 459 mL of an ideal gas at 27 °C and 1.05 atm is cooled to 15 °C and 0.997 atm?

Q: The “Chemistry in Focus” segment Snacks Need Chemistry, Too

The “Chemistry in Focus” segment Snacks Need Chemistry, Too! discusses why popcorn “pops.” You can estimate the pressure inside a kernel of popcorn at the time of popping by using the ideal gas law. B...

Q: Make the indicated pressure conversions. a. 45.2

Make the indicated pressure conversions. a. 45.2 kPa to atmospheres b. 755 mm Hg to atmospheres c. 802 torr to kilopascals d. 1.04 atm to millimeters of mercury