1.Convert the following temperatures to the requested unit. 

a) -37.5 ℃ into K    b) 85.0 ℃ into K    c) 315 K into ℃      d) 110 K into ℃

2. Convert the following pressures to the requested unit.
a) 2.5 atm into mmHg     b) 1010 mmHg into kPa     c) 935 Torr into atm    d) 95 kPa into atm

3. 8.50 g of magnesium is reacted with 325 mL of 0.250 mol /L hydrochloric acid. What volume of dry gas is expected to be collected over water at SATP?

4. 8.42 g of a diatomic gas is found to have a volume of 833 mL at 38.5 38.5℃and 103.2 kPa . What is the identity of this gas? gas? 

5. What is the density of chlorine gas at SATP?

6. 6.12 L of wet Xenon gas is collected at 205 kPa and  80℃. What would be the volume of dry gas at STP ?

7. FOUR gases are stored in a rigid container. The total pressure within the container is 288 kPa. If there are 4.7 moles of Ne, 2.8 moles of O2 , 1.3 moles of Ar , and 3.1 moles of Br2 , what is the partial pressure of oxygen in this container?