The Mole
Balancing Equations
Equation Types
Mole to Mole Conversions
Mass to Mass Conversions
Random
100
Avogadro's Number
What is 6.022 x 1023 OR 6.02 x1023
100
Balance the following equation:
H2 + O2 --> H2O
What is 2H2 + O2 --> 2H2O
100
2AlCl3 + N2 --> 2AlN +3Cl2
What is single replacement
100
2H2+O2→2H2O
The number of moles of O2 needed to react with 6 moles of H2.
What is 3
100
N2 + 3H2 --> 2NH3
The number of grams of NH3 that can be produced with 41.3g of H2.
What is 232g NH3
100
Take the molecule Mg(NO3)2. What is the charge of Mg and NO3? NO3 is an example of a/an?
What is Mg+2 and NO3-? What is a polyatomic ion?
200
The molar mass of Sodium Bromide.
What is 102.89 g/mol
200
Balance the following equation:
Fe2O3 + C --> Fe + CO2
What is 2Fe2O3 + 3C --> 4Fe + 3CO2
200
P4 + 3O2 ---> 2P2O3
What is synthesis
200
2H2 + O2 --> 2H2O
The number of moles of water that can be produced when 4.44 mol of O2 react with excess hydrogen
What is 8.88 mol H2O.
200
N2 + 3H2 --> 2NH3
The amount of nitrogen needed to produce 232g NH3.
What is 191g.
200
What molecule is made if you combine Al+3 with Cl-?
What is AlCl3?
300
The number of moles in 3.25 x 1024 molecules of H2O.
What is 5.40 moles
300
Balance the following equation:
NaBr + Cl2 --> NaCl + Br2
What is 2NaBr + Cl2 --> 2NaCl + Br2
300
3 Hg(OH)2 + 2 H3PO4 → Hg3(PO4)2 + 6 H2O
What is double replacement
300
4Fe +3O2→2Fe2O3
The number of moles of Fe2O3 that can be produced when 5 moles of O2 react with iron.
What is 3.33 moles
300
MgO + 2NaCl --> MgCl2 + Na2O
The amount of NaCl required to react with 44.2g of MgO.
What is 129g NaCl.
300
What is the common ion charge of Ca, N, Br?
What is +2, -3, -1?
400
The number of grams of Ag2S in 0.546 moles.
What is 135g
400
Balance the following equation:
FeCl3 + MgO --> Fe2O3 + MgCl2
What is 2FeCl3 + 3MgO ---> Fe2O3 + 3MgCl2
400
Predict the products and balance the equation:
MgO + 2 H2 →
MgO + H2 → Mg + H2O
400
4Fe +3O2→2Fe2O3
The number of moles of Fe necessary to produce 10 moles of Fe2O3.
What is 20 moles Fe
400
MgO + 2NaCl --> MgCl2 + Na2O
The number of g of MgCl2 produced when 129g of NaCl react with magnesium oxide.
What is 105g MgCl2.
400
3Cu + 8HNO3 ----------> 3Cu(NO3)2 + 2NO + H2O
What is the limiting reagent when 50.0g HNO3 react with 50.0g Cu when trying to make as much Cu(NO3)2 as possible?
What is HNO3
500
What is the percent composition of Mg in magnesium phosphate Mg3(PO4)2? (First you need to calculate the molar mass = 262.9g/mol!
Mg+Mg+Mg+P+P+O+O+O+O+O+O+O+O = 262.9g/mol
What is 27.7%?
24.3x3 = 72.9g/mol
72.9/262.9 = .277 ; .277 x 100% = 27.7%
500
Balance the following equation:
Li + H3PO4 ---> H2 + Li3PO4
What is 6Li + 2H3PO4 ---> 3H2 + 2Li3PO4
500
Predict the products and balance the equation:
LiOH + Fe(NO3)3 →
What is 3 LiOH + Fe(NO3)3 → 3 LiNO3 + Fe(OH)3
500
C2H6O + 3 O2 --> 2 CO2 + 3 H2O
The number of moles of CO2 produced when 12.3 moles of O2.
What is 8.2 moles CO2
500
3Cu + 8HNO3 ---> 3Cu(NO3)2 + 2NO + H2O
The number of grams of HNO3 necessary to produce 100.0g of Cu(NO3)2
What is 89.61g HNO3
500
The reusable booster rockets of the U.S. space shuttle employed a mixture of aluminum and ammonium perchlorate for fuel. A possible equation for this reaction is:
3Al + 3NH4ClO4 → Al2O3 + AlCl3 + 3NO + 6H2O
What mass of ammonium perchlorate (NH4ClO4) should be used in the fuel mixture for every 1000 grams of aluminum (Al)?
