posted by Ivy on .
1. What is the Kelvin temperature of a system in which 4.50 mol of a gas occupy 0.250 L at 4.15 atm?
2. In the lab, students generated and collected hydrogen gas according to the following equations:
Zn + H2SO4---> H2 + ZnSO4
a) How many mL of hydrogen gas at STP were generated from 52.7 g of zinc metal?
b) If 525 mL of hydrogen gas at STP were needed, how many moles of H2SO4 would be required?
Use PV = nRT for #1.
The next two are stoichiometry problems. Just follow the steps in the link below.