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OpenStudy (anonymous):
V2O5 reacts with Ca according to the chemical equation below. When 10.0 mole of V2O5 is mixed with a certain amount of Ca, 204 g of vanadium (V) is produced (assuming %yield is 100%). How many grams of Ca were in the system at the beginning of the reaction? V2O5 (s) + 5 Ca (l) →2 V (l) + 5 CaO (s)
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