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) ?

Question

Chemistry

Addison Stout

20 February, 14:47

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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Answers (1)

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Sylvia Kane · Answer 1

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