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Initial: CaCl2•2H2O (g) 1 gram    Initial: CaCl2•2H2O (moles)  .0068 moles  Initial: CaCl2 (moles)  .009 moles  Initial: Na2CO3 (moles) .0068    Initial: Na2CO3 (g)  0.72 moles  Theoretical: CaCO3 (g) 0.60 grams   Mass of Filter paper (g)  1.04 grams   Mass of Filter Paper + CaCO3 (g) 1.82 grams    Actual: CaCO3 (g)  0.78  % Yield:    

What is the percentage yield?

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