A glass container was initially charged with 1.50 moles of a gas sample at 5.00 atm and 21.7 °C. Some of the gas was released as the temperature was increased to 33.1 °C, so the final pressure in the container was reduced to 1.50 atm. How many moles of the gas sample are present at the end?

For many purposes we can treat methane (CH) as an ideal gas at temperatures above its boiling point of – 161. °C. Suppose the temperature of a sample of methane gas is lowered from 95.0 °C to 58.0 °C, and at the same time the pressure is increased by 5.0%. O increase 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. 0% APR 24 W MacBook Air

You start with an equimolar mixture of the gases SO₂ and O₂ in a container. The SO₂ and O₂ react to completion to form SO₃. If the temperature after the reaction is 25°C and the pressure in the container is 2.35 atm, what is the density of the product gas mixture, in g/L? Assume ideal behavior.

A sample of hydrogen gas was collected by displacement of water in a large gas buret. The total pressure in the buret was measured as 764.2 torr, the temperature was 23.0 °C, and the buret contained 511 mL of the collected gas. How many moles of hydrogen were collected? (At 23.0 °C, the vapor pressure of water is 21.1 torr.)