Math Problem Statement
What is the theoretical yield in grams of Ca(OH)2 if 2.04 g of KOH react with 3.02 g of CaCl2•2H2O as shown by the below equation?
CaCl2(aq) + 2KOH(aq) → Ca(OH)2(s) + 2KCl(aq)
In the part of the calculation that converts the number of grams to moles for CaCl2•2H2O, the two water molecules must be included in the molar mass needed to convert grams to moles (molar mass of CaCl2•2H2O is 147.0 g/mol).
Solution
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Math Problem Analysis
Mathematical Concepts
Stoichiometry
Mole-to-Mass Conversion
Limiting Reactant
Formulas
Moles of substance = mass / molar mass
Mole ratio from balanced chemical equation
Mass of product = moles × molar mass
Theorems
Law of Conservation of Mass
Suitable Grade Level
Grades 10-12
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