A sample of an ideal gas has a volume of 3.15 L at 11.00 ∘C and 1.80 atm. What is the volume of the gas at 20.20 ∘C and 0.990 atm?

A common way to make hydrogen gas in the laboratory is to place a metal such as zinc in hydrochloric acid (see the figure). The hydrochloric acid reacts with the metal to produce hydrogen gas, which is then collected over water. Suppose a student carries out this reaction and collects a total of 147.6 mL of gas at a pressure of 743 mmHg and a temperature of 25° C. What mass of hydrogen gas (in mg) does the student collect? (The vapor pressure of water is 23.78 mmHg at 25° C.) Collecting a Gas over Water -Н2 Hydrogen plus water vapor - Zn -HCl -Н-0 Express the mass to three significant figures and include the appropriate units. HA Value Units т 3

If 37.5 mol of an ideal gas occupies 92.5 L at 43.00 ∘C, what is the pressure of the gas?

If an ideal gas has a pressure of 1.03 atm,1.03 atm, a temperature of 89.30 ∘C,89.30 ∘C, and a volume of 70.73 L,70.73 L, how many moles of gas are in the sample?