Part I - Mole Ratio Practice

Name ______Date ______Period ______Mole Ratios

Part I - Mole Ratio Practice For each of the following, balance the equation and determine the mole ratio specified in the problem. Remember your units.

1. _____ Fe + _____ H2O → _____ Fe3O4 + _____ H2

What is the mole ratio of Fe to Fe3O4? :

2. _____ Ni + _____ I2 → _____ NiI2

What is the mole ratio of Ni to NiI2?

3. _____ AlBr3 + _____ Cl2 → _____ AlCl3 + _____ Br2

What is the mole ratio of AlCl3 to Br2?

4. _____ Al + _____ Pb(NO3)2 → _____ Al(NO3)3 + _____ Pb

What is the mole ratio of Pb(NO3)2 to Al(NO3)3?

5. _____ Sb + I2 → _____ SbI3

What is the mole ratio of I2 to SbI3? Part II - Mole to Mole Conversions For each of the following, balance the equation and find the missing quantity by setting up a proportion using the mole ratio found using the coefficients from the balanced equation. For example, if the mole ratio is 1 mol:2 mol and the new quantity for the first substance is 5 mol, the equation would be set up as:

1 mol 5 mol ------= ------Cross multiply and solve : 1 (x) = 2 (5 mol) 2 mol x x = 10 mol of the second substance

1. How many moles of oxygen gas will react with 2 moles of methane gas (CH4) according to the following equation:

CH4 + O2 → CO2 + H2O

2. In the reaction AlCl3 → Al + Cl2 , how many moles of chlorine gas are produced when 2.4 moles of aluminum chloride decomposes?

3. Sodium reacts with fluorine to produce sodium fluoride in the reaction shown below. If 4.60 moles of sodium react, how many moles of fluorine were used in the reaction?

Na + F2 → NaF