Particles<-> Moles
<->Mass
<->Mass
How many moles are there in 32.0 grams of O2?
1 mole O2
N2 + 3H2 → 2NH3
How many moles of hydrogen, H2, are needed to react with 2.0 moles of nitrogen, N2?
6.0 moles of Hydrogen
Sn(s)+2HF(g)→SnF2(s)+H2(g)
How many moles of hydrogen fluoride are required to react completely with 75.0g of tin?
1.26mol of HF
LiOH+HBr --> LiBr+H2O
If you start with 10.0 grams of LiOH, how many grams of LiBr will be produced?
36.25g LiBr
2 Mg + O2 --> 2 MgO
What is the limiting reactant if 2.2 g of Mg is reacted with 14.4g of oxygen?
Mg is the limiting reactant
If there are 2.4 moles of calcium carbonate, how many particles are present?
1.44 x 1024 particles calcium carbonate
Zn + 2HCl → ZnCl2 + H2
How many moles of hydrogen are produced from the reaction of 3.0 moles of zinc?
3.0 moles of Hydrogen
2C2H2+5O2 --> 4CO2+2H2O
How many moles of water are produced when 25.0 grams of C2H2 burns completely?
0.96 mol H2O
Mg+2NaF --> MgF2+2Na
If you start with 5.5 grams of sodium fluoride, how many grams of magnesium fluoride will be produced?
4.06g MgF2
CH4 + 2 H2O --> 4 H2 + CO2
If 80.0 g of CH4 and 16.3 g of water react, what is the limiting reactant?
Water is the limiting reagent
If there are 137 g of Cl2 how many particles are present?
1.61 x 1024 particles Cl2
K3PO4 + Al(NO3)3 → 3KNO3 + AlPO4
How many moles of potassium nitrate are produced when 2.5 moles of potassium phosphate react?
7.5 moles of potassium nitrate
CaC2+2H2O --> C2H2+Ca(OH)2
If 3.20 moles of CaC2 are consumed in this reaction, how many grams of H2O are needed?
115.2g of H2O
N2+3H2 --> 2NH3
How many grams of H2 are necessary to react completely with 50.0g of N2?
10.7g H2
__NaCl + ___Pb(NO3)2 --> ___NaNO3 + ___PbCl2
How many grams of lead II chloride are produced from the reaction of 15.3 g of NaCl and 60.8 g of Pb(NO3)2? What is the limiting reactant?
36.4 g of PbCl2 was produced
NaCl is the limiting reactant