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CaC2 reacts with H2O to form C2H2.

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How many moles of C2H2 is yielded if 1.7kg of CaC2 is reacted with excess water?

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  1. CaC2  +  2H2O  ==>  C2H2  +  Ca(OH)2

    1.7Kg CaC2 = 1700g CaC2

    1700g CaC2 x (1 mole CaC2 / 64g CaC2) x (1 mole C2H2 / 1 mole CaC2) = 26.6 moles C2H2

    In significant figures = 27 moles C2H2

You're reading: CaC2 reacts with H2O to form C2H2.

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