6 chemistry assignments due in 3 days

Name __________________________________ Date______________ Class Period_____

Stoichiometry: Mole-Mole Problems Show your handwritten work on paper for each of the problems below. If typed, I will return this to you to hand write and resubmit for a reduced amount of points. Each problem must be worked according to the methods presented in the lesson, including writing ALL units of measurement, which cross out above and below the line. Click for Scientific Calculator. Submit your work which includes your student I.D. Do not cover up any of your work in your submission.

1. How many moles of hydrogen, H2, are needed to react with 3.0 moles of nitrogen, N2?

N2 + 3H2 → 2NH3

Write both mole ratios possible, between H2 and N2

Set up and solve:

2. How many moles of oxygen are produced by the decomposition of 5.0 moles of potassium chlorate, KClO3?

2KClO3 → 2KCl + 3O2

Write both mole ratios possible, between KClO3 and O2

Set up and solve:

Name __________________________________ Date______________ Class Period_____

3. How many moles of hydrogen are produced from the reaction of 4.75 moles of zinc?

Zn + 2HCl → ZnCl2 + H2

Write both mole ratios possible.

Set up and solve:

4. How many moles of oxygen are necessary to react completely with 0.50 moles of propane (C3H8)?

C3H8 + 3O2 → 3CO2 + 4H2

Write the possible mole ratios.

Set up and solve:

5. How many moles of potassium nitrate are produced when 0.25 moles of potassium phosphate react?

K3PO4 + Al(NO3)3 → 3KNO3 + AlPO4

Write the possible mole ratios.

Set up and solve: