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1. Why must a chemical equation be balanced to solve stoichiometry problems?
A stoichiometry problem requires that you convert from a known quantity of one
compound to an unknown amount of another. The only way to convert between two
compounds is through a molar ratio. The molar ratio is determined by the balanced
chemical equation.
2. List the four types of reaction stoichiometry problems and briefly describe how to
solve each one.
Mole-mole problems - use the molar ratio to change from moles of known to moles
unknown
Mass-mass problems - change to moles of known, the moles of unknown to mass of
unknown, then use the molar volume to solve for the volume
Volume-volume problems - change volume to moles of known, then to moles of unknown
and then to the volume of unknown
Mass-volume problems - change to moles of known, to moles of unknown
For more information see:
http://www.csun.edu/~psk17793/G%20Chemistry/solving_stoichiometry_problems.htm
3. Describe the steps necessary to solve a mass - mass stoichiometry...