Unit 8 Pre Test

Front

What can be measured in gases?

Back

Pressure, Temperature, Volume, and Moles.

Front

What is the reaction of H2 with CuO?

Back

CuO (s) + H2 (g) → Cu (aq) + H2O (l).

Front

How many moles of Cu are produced from 5.6 L of H2 at STP?

Back

0.250 mol.

Front

What happens to volume if temperature decreases while pressure is constant?

Back

Volume decreases.

Front

What formula is used to find the new volume when pressure changes?

Back

P1V1 = P2V2 (Boyle's Law).

Front

What is the molar volume of a gas at STP?

Back

22.4 L/mol.

Front

What is the ideal gas law formula?

Back

PV = nRT.

Front

What does STP stand for in gas laws?

Back

Standard Temperature and Pressure.

Front

What is the relationship between pressure and volume in gases?

Back

Inversely proportional (Boyle's Law).

Front

What is the effect of increasing temperature on gas volume at constant pressure?

Back

Volume increases (Charles's Law).