Show:
Balancing
Mole-to-Mass
Mass-to-Mole
Moles-to-Representative Particles
100

Al + HCl → AlCl3 + H2

2Al+ 6HCl+2AlCl3+H2

100

2H2S+3O2→2SO2+2H2O (unbalanced)

What mass of oxygen gas is consumed in a reaction that produces 4.60 mol SO2?

221 g O2

100

Sn+2HF→SnF2+H2  (unbalanced)

How many moles of hydrogen fluoride are required to react completely with 75.0g of tin?

1.26 mol HF

100

Calculate the number of representative particles in 2.15 moles of gold

1.29 × 1024 atoms Au

200

P4O10 + H2O → H3PO4

P4O10 + 6H2O → 4H3PO4

200

CaC2+H2O->C2H2+Ca(OH)2 (balanced)

If 3.2 moles of CaC2 are consumed in this reaction, how many grams of water are needed?

1.2 x102 g H2O

200

3Mg+1Fe2O3->2Fe+3MgO  (unbalanced)

How many mole of iron are produced with 25g of Mg?

0.69 mol Fe

200

Calculate the number of representative particles in 0.151 mole of nitrogen oxide

9.09 × 10 22 molecules NO

300

KClO3 → KClO4 + KCl

4KClO3 → 3KClO4 + KCl

300

Mg+HCl->MgCl2+H2 (balanced)

what is the mass of hydrogen gas when 4 moles of HCl is added to the reaction?

4 g HCl

300

NH4NO3->N2O+2H2O  (unbalanced)

How many moles of water are produced with 45g of N2O?

2.0 mol H2O

300

How many formula units of AgNO3 are there in 3.25 mol AgNO3?

1.96 × 1024 formula units AgNO𝟑

400

C7H6O2 + O2 → CO2 + H2O

2C7H6O2 + 15O2 → 14CO2 + 6H2O

400

CaC2+2H2O->C2H2+Ca(OH)2   (unbalanced)

How many grams of Ca(OH)2 would be formed with 3.2 mol of CaC2

2.4 x 102 Ca(OH)2

400

2AlCl3 + 3H2O->Al2O3 + 6HCl  (unbalanced)

How many moles of HCl will be produced when 249 g of AlCl3 are reacted?

5.6 mol HCl

400

Calculate the number of moles in 91.4 mol of carbon monoxide

5.50 × 1025 molecules carbon monoxide (CO)

500

Ca3(PO4)2 + SiO2 → P4O10 + CaSiO3

2Ca3(PO4)2 + 6SiO2 → P4O10 + 6CaSiO3

500

CH4 + 2O2 → CO2 + 2H2O  (unbalanced)

What mass of CO2 is produced by the combustion of 1.00 mol of CH4?


44.0 g CO2

500

Ca + N2+ 3O2 → Ca(NO3)2  (unbalanced)

How many moles of O2 are needed to prepare 1.00 g of Ca(NO3)2?


0.0183 mol O2

500

Arrange these three samples from smallest to largest in terms of number of representative particles:

1.25 × 1025 atoms of zinc (Zn), 3.56 mol of iron (Fe), and 6.78 × 1022 molecules of glucose (C6H12O6).

From smallest to largest: 6.78 × 1022 molecules glucose, 2.14 × 1024 atoms Fe, 1.25 × 1025 atoms Zn.