Gas Stoichiometry QUIZ HONORS

How many liters are in a mole?

• 6.022x10^23
• 1
• Molar Mass
• 22.4

How many grams are in a mole?

• 6.022x10^23
• 1
• Molar Mass
• 22.4

Mg₃N_2(s) + 3H₂O_(l) ––> 3 MgO + 2NH_3(g)
If 10.3 g of magnesium nitride is used, what volume of ammonia gas would be collected at 20˚C and 0.989 atm?

• 27.1 L H₂
• 4.96 L H₂
• 0.204 L H₂
• 10.3 L H₂

In the ideal gas law, _____ represents moles of a gas.

• T
• V
• R
• n

_Al + _HCl → _AlCl₃ + _H₂

How many grams of aluminum are necessary to produce 11 L of hydrogen gas at STP?

• 13 g Al

• 8.8 g Al

• 22 g Al

• 1.0 g Al

Mg + 2H₂O → Mg(OH)₂ + H₂

What volume of hydrogen will be produced at STP by the reaction 67.3 g of magnesium?

• 62.0 L H₂

• 40.1 L H₂

• 2.77 L H₂

• 1.15 L H₂

_NH₃ + _NO → _N₂ + _H₂O

How many liters of NH₃ at 32.0°C and 1.25 atm are needed to react completely with 2.50 moles of NO

• 5.27 L NH₃

• 33.4 L NH₃

• 45.2 L NH₃

• 536 L NH₃

If the pressure exerted by a gas at 25 degrees C in a volume of 0.044 L is 3.81 atm, how many moles of gas are present?

• .002766 mole
• .0069 mol
• 2.766 mol
• 9.887 mol