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Author Topic: chemistry help, pleeeease???  (Read 995 times)
Megan_Ward
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« on: May 12, 2011, 05:39:14 PM »

CaC2 + 2 H2O -----------> C2H2 + Ca(OH)2

What mass of acetylene is produced if 32.0 g of CaC2 is placed in the lamp with an excess of water?
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Roger_the_Mole
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« Reply #1 on: May 15, 2011, 03:21:41 PM »

CaC2 + 2 H2O → C2H2 + Ca(OH)2

(32.0 g CaC2) / (64.1000 g/mol) x (1/1) x (26.0375 g/mol) = 13.0 g C2H2
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