Name: ______Period:______Date:______

UNIT 2 Review: Moles, Chemical Reactions and Stoichiometry

Show all work using dimensional analysis to calculate the answers to the following problems:

  1. Mole Conversions
  1. Calculate the volume (in L) occupied by a 25.82 g sample of F2 gas at STP.
  1. How many molecules of sulfur trioxide gas will be found in a tank containing 3.5 L of this gas stored under STP conditions?
  1. Chemical Equations and Reaction Types

Predict products, balance each equation and determine the chemical reaction type for each:

  1. ____NH4NO3 + ____AlCl3 →Reaction Type:
  2. ____P2O5 →Reaction Type:
  3. ____Mg + ____Ag2CO3 →Reaction Type:
  4. ____C5H10 + ____O2 →Reaction Type:
  5. ____Rb + ____N2 →Reaction Type:

Write reactant and product formulas in order to build and balance chemical equations for each description below:

  1. Nitric acid is produced in a synthesis reaction from the reactants dinitrogenpentoxide and water.
  1. Tin (IV) bromide is combined with highly reactive fluorine gas.
  1. Stoichiometry

Build and balance each chemical equation and use dimensional analysis to solve each problem.

  1. When 24.7 grams of calcium metal reacts with excess amounts of hydrocholoric acid, how many liters of hydrogen gas (at STP) will be expected to be produced with the calcium chloride product?
  1. During the complete chemical breakdown of 0.211 kilograms of iron (III) oxide, how many atoms of iron can be expected to form as the reactant responds to intense heating?
  1. If 6.988 L of C3H8 burns in the presence of an unlimited supply of oxygen gas, what volume (in L) of water vapor will form at standard temperature and pressure?
  1. Stoichiometry Extensions
  1. When 11.66 g of copper and 7.004 g of sulfur react, the solid product copper (I) sulfide is created. Determine the maximum amount of product (in grams) that can be produced from these reactant quantities AND identify the limiting reactant.
  1. A group of scientists are asked to carry out the procedure for the double displacement reaction of lead (II) iodide and strontium oxide. Determine the theoretical moles of the strontium iodide product that can form from the complete reaction of 111.1 grams of lead (II) iodide with excess SrO. Also, if the scientists successfully isolate 0.209 moles of the strontium iodide product, what is the percent yield?