49. Calculate the density of Freon 12, CF2Cl2, at 30.0 °C and 0.954 atm.

1. Express R, the gas law constant in units of mL•kPa/mol•K by converting L and atm to mL and kPa, respectively. Show all your work and calculations.

A 34.0 L metal cylinder stores a sample of gas at 26 °C under 1.42 atm. The temperature of the storage unit rises to 96 °C, causing the gas to decompose and doubling the number of moles in the cylinder.

Please don't provide handwritten solution ....

For many purposes we can treat ammonia (NH,) as an ideal gas at temperatures above its boiling point of –33. °C. Suppose the temperature of a sample of ammonia gas is raised from – 25.0 °C to 17.0 °C, and at the same time the pressure is changed. If the initial pressure was 0.15 kPa and the volume decreased by 50.0%, what is the final pressure? Round your answer to 2 significant digits. kPa 1 Don't Know Submit etv DII esc %23 24 6 7 09 2 4 OP E T Y.

Calculate the total pressure (in atm) of a mixture of 3.00 x 10-2 mol of helium, He, and 7.00 x 10- mol of oxygen, O2, in a 6.00 L flask at 20.°C. Assume ideal gas behavior. Total pressure atm ||

For many purposes we can treat ammonia (NH, ) as an ideal gas at temperatures above its boiling point of -33. °C. Suppose the temperature of a sample of ammonia gas is lowered from 13.0 °C to –16.0 °C, and at the same time the pressure is increased by 10.0%. increase x10 Does the volume of the sample increase, decrease, or stay the same? decrease ? stays the same If you said the volume increases or decreases, calculate the percentage change in % the volume. Round your answer to the nearest percent.

A sample of krypton gas occupies a volume of 7.00 L at 57.0°C and 1.28 atm. If it is desired to increase the volume of the gas sample to 8.96 L, while increasing its pressure to 1.61 atm, the temperature of the gas sample at the new volume and pressure must be PC.

If a sample of Xenon gas occupies a volume of 31.0L at 17.0°C, at what temperature, in °C, will it occupy a volume of 7.0L if the pressure remains constant? (Hint: Convert ° to K)

1.What is the temperature of the gas? 2.Determine the volume (in L)