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11 May, 13:45

How many grams of h2 are needed to react with 48 grams of o2, given the reaction: 2 h2 (g) + o2 (g) - - > 2 h2o (l) ?

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  1. 11 May, 15:10
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    1. Calculate the number of mole of O2: 48/32=1.5 mol

    2. Calculate the number of mole of H2 by mole ratio: 1.5 x 1/2=0.75 mol

    3. Calculate the answer:

    0.75 x 2=1.5g
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