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Stoichiometry problems
Stoichiometry
• Combines mole ratios with mole-gram
conversions.
• Helps determine how much of a product or
reactant is needed
Stoichiometry
SiO2 + 3 C
SiC + 2 CO
How many grams of carbon are
needed to react with 5.00 grams of
SiO2? How many grams are
produced of each product?
Problems with one step
• Starting with moles of A and ending with grams of A
• Starting with grams of A and ending with moles of A
• Starting with moles of A and ending with moles of B
Problems with two steps
• Starting with moles of A ending with grams of B
• Starting with grams of A and ending with moles of B
Problems with three steps
• Starting with grams of A and ending with grams
of B
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