Moles, Molar Mass, and Molar Volume Mixed Practice
2 C4H10 + 13 O2  8 CO2 + 10 H2O
Calculate the molar mass of each chemical in the reaction above. Do not include the coefficients from the reaction.
C4H10 = ____________
O2 = ____________
CO2 = ____________
H2O = ____________
1.
2.
3.
4.
5.
How many grams are represented by 2.45 moles of oxygen, O2?
12.65 liters of carbon dioxide are produced. How many moles does this volume represent?
0.35 moles of butane, C4H10, are reacted. How many moles of water will this produce?
How many liters of oxygen are represented by 1.76 moles?
How many moles of oxygen are needed to produce 3.56 moles of carbon dioxide?
K2SO4 + MgCl2  2 KCl + MgSO4
Calculate the molar mass of each chemical in the reaction above. Do not include the coefficients from the reaction.
K2SO4 = ____________
MgCl2= _____________
KCl = _____________
MgSO4 = ____________
6. How many grams are represented by 2.7 moles of potassium chloride, KCl?
7. 7.2 moles of magnesium chloride, MgCl2, are used in the reaction. How many moles of potassium chloride, KCl, does
this create?
8. The reaction forms 3.2 moles of MgSO4. How many moles of K2SO4 are needed to make this?
9. The reaction uses 4.7 moles of MgCl2. What is the mass of this amount?
10. 4.7 grams of KCl are made in the reaction. How many moles does this represent?
Moles, Molar Mass, and Molar Volume Mixed Practice
2 C4H10 + 13 O2  8 CO2 + 10 H2O
Calculate the molar mass of each chemical in the reaction above. Do not include the coefficients from the reaction.
C4H10 = ____________
O2 = ____________
CO2 = ____________
H2O = ____________
1.
2.
3.
4.
5.
How many grams are represented by 2.45 moles of oxygen, O2?
12.65 liters of carbon dioxide are produced. How many moles does this volume represent?
0.35 moles of butane, C4H10, are reacted. How many moles of water will this produce?
How many liters of oxygen are represented by 1.76 moles?
How many moles of oxygen are needed to produce 3.56 moles of carbon dioxide?
K2SO4 + MgCl2  2 KCl + MgSO4
Calculate the molar mass of each chemical in the reaction above. Do not include the coefficients from the reaction.
K2SO4 = ____________
MgCl2= _____________
KCl = _____________
MgSO4 = ____________
6. How many grams are represented by 2.7 moles of potassium chloride, KCl?
7. 7.2 moles of magnesium chloride, MgCl2, are used in the reaction. How many moles of potassium chloride, KCl, does
this create?
8. The reaction forms 3.2 moles of MgSO4. How many moles of K2SO4 are needed to make this?
9. The reaction uses 4.7 moles of MgCl2. What is the mass of this amount?
10. 4.7 grams of KCl are made in the reaction. How many moles does this represent?