Download Mole Ratios Worksheet

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Class Period:____
Mole Ratios
What is a Mole Ratio? It is defined as the ratio of moles of one substance to the moles of
another substance in a BALANCED equation
How do I figure out the Mole Ratio? All you need to do is look at the balanced equation for the
COEFFICIENTS in front of the substances you are interested in – the coefficients are your MOLES!
For Example: Look at the balanced equation below between Sodium and Chlorine gas. Note the
coefficients and how they correspond to the mole ratios for this equation.
2Na(s) + Cl2(g)  2NaCl(S)
Mole Ratio between Na and Cl2 gas = 2:1
Mole Ratio between Na and NaCl = 2:2
Mole Ratio between Cl2 and NaCl = 1:2
Balance the following equations and give the mole ratios for the compounds in question
1. _____BaCl2 + _____KClO3 → _____Ba(ClO3)2 + _____KCl

Moles BaCl2 : Moles KCl

Moles KClO3 : Moles KCl
2. _____H2 + _____O2 → _____H2O

Moles H2 : Moles H2O

Moles O2 : Moles H2
Name____________________________________________
3. _____ (NH4)2CO3 + _____CuCl2 → _____NH4Cl + _____CuCO3

Class Period:____
Moles Ammonium carbonate : Moles Ammonium chloride
4. _____CaCO3 → _____CaO + _____CO2

Moles of Calcium carbonate : Moles of Calcium oxide
5. _____C3H8 + _____O2 → _____H2O + _____CO2

Moles of H2O to Moles of C3H8

Moles of Oxygen gas to moles of Carbon dioxide gas
Write and Balance the following equations to determine the Moles Ratios for the
compounds in question
6. Potassium metal reacts with Mercury (II) chloride to produce Mercury metal and Potassium
chloride

Moles of Potassium to moles of Mercury
7. Lead (IV) nitrate reacts with Sodium iodide to produce Leab (IV) iodide and Sodium nitrate

Moles of Sodium iodide to moles of Sodium nitrate