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Mole Ratio Practice Wednesday (mol-mol)

Last updated about 5 years ago
6 questions
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Mole Ratio practice problems

Mole Ratio Practice

Wednesday 18NOV20

Due Thursday 19NOV20


As we begin stoichiometry I want to make sure that you think about an overall plan like Melissa Maribel tells us.

Balanced chemical equations (recipes) only work with moles. You cannot use a balanced chemical equation to compare grams of different reactants/products, unless you first convert to moles. For that reason your "plan" for doing a stoichiometry problem, should always include a mole-mole portion, and optionally a portion convertiing those moles to mass, volume, or particles.

For all the problems here on this practice, you will be converting only from "mole to mole".

To convert between moles of one compound and moles of another compound you must use the mole ratio. The mole ratio is built by using the coefficients of a balanced chemical equation.

Today:
mole->mole

Tomorrow:
g->mole->mole->g
g->mole->mole
mole->mole->g


Friday:
g,L, #->mole->mole->g,L, #
g,L, #->mole->mole
mole->mole->g,L, #
1

2SO2 + O2 -> 2SO2

Use dimensional analysis, or other method, to calculate how many moles of SO2 will be produced if 7.3 moles of O2 are reacted.

1

2 C4H10 + 13 O2 → 8 CO2 + 10 H2O

Use dimensional analysis, or other method, to calculate how many moles of water are produced when 77 moles of oxygen gas are reacted

1

2 C4H10 + 13 O2 → 8 CO2 + 10 H2O

Use dimensional analysis, or other method, to calculate how many moles of C4H10 you need to react with 55.5 moles of oxygen gas.

1

NH3+ 5O2 → 4NO + 6H2O

Use dimensional analysis, or other method, to calculate how many moles of water are produced if 7 moles of oxygen gas are reacted.

1

NH3+ 5O2 → 4NO + 6H2O

Use dimensional analysis, or other method, to calculate how many moles of nitrogen monoxide are produced if 13 moles of oxygen gas are reacted.

1

NH3+ 5O2 → 4NO + 6H2O

Use dimensional analysis, or other method, to calculate how many moles of nitrogen monoxide are produced if 21.5 moles of water were produced.