Mole to Mole
2 KClO3 → 2 KCl + 3 O2
How many moles of oxygen are produced by the decomposition of 6.0 moles of potassium chlorate (KCLO3)?
9.0 moles of O2
CaC2 + 2 H2O → C2H2 + Ca(OH)2
If 3.20 moles of CaC2 are consumed in the reaction, how many grams of H2O are needed?
115.2 g of H2O
Mg + 2 NaF → MgF2 + 2 Na
If you start with 16 grams of magnesium (Mg), how many moles of sodium (Na) will be produced?
1.3 moles of sodium (Na)
LiOH + HBr → LiBr + H2O
If you start with 10 grams of lithium hydroxide (LiOH), how many grams of lithium bromide (LiBr) will be produced?
36.3 g of lithium bromide (LiBr)
C3H8 + 3 O2 → 3 CO2 + 4 H2
How many moles of oxygen are necessary to react completely with 4.0 moles of propane (C3H8)?
12 moles of O2
Mg + 2 HCl → MgCl2 + H2
How many grams of HCl are consumed by the reaction of 2.50 moles of magnesium?
183 g of HCl
2 Al + 3 Cl2 → 2 AlCl3
If 17 grams of Aluminum react, how many moles of aluminum chloride (AlCl3) will be produced?
0.63 moles of aluminum chloride (AlCl3)
B2H6 + 3 O2 → 2 HBO2 + 2 H2O
What mass of O2 will be needed to burn 36.1 g of B2H6?
125 g of O2
C2H4 + 3 O2 → 2 CO2 + 2 H2O
If you start with 1.5 moles of O2, how many moles of CO2 will be produced?
1 mole of CO2
2 HgO → 2 Hg + O2
How many moles of HgO will be used to produce 7.4 grams of Hg?
0.037 moles of HgO
3 Mg + Fe2O3 → 2 Fe + 3 MgO
How many moles of iron, Fe, are produced with the reaction of 25.0 grams of magnesium, Mg?
0.686 moles of iron (Fe)
C2H4 + 3 O2 → 2 CO2 + 2 H2O
If you start with 45 grams of ethylene (C2H4), how many grams of carbon dioxide will be produced?
141.16 g of CO2
2 C4H10 + 13 O2 → 8 CO2 + 10 H2O
How many moles of butane (C4H10) are needed to react completely with 5.5 moles of oxygen?
0.85 moles of butane (C4H10)
2 C4H10 + 13 O2 → 8 CO2 + 10 H2O
How many grams of carbon dioxide will be produced if 3.5 moles of O2 react?
94.8 g of carbon dioxide (CO2)
4 NH3 + 3 O2 → 2 N2 + 6 H2O
How many moles of nitrogen gas will be produced if 12.6 g of ammonia (NH3) react?
0.370 moles of nitrogen (N2)
N2 + 3 H2 → 2 NH3
How many grams of hydrogen are necessary to react completely with 50.0 grams of nitrogen?
10.7 g of hydrogen (H2)