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20-03-2020
Chemistry

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Determine the moles of oxygen gas (O2) needed to completely react with 1.975 moles of hydrogen gas (H2).

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20-03-2020

Answer:

0.9875 mole O₂

Explanation:

Rxn => H₂ + ¹/₂O₂ => H₂O

from above reaction, 1 mol H₂ requires ¹/₂ mol O₂ then 1.975 mol H₂ requires ¹/₂(1.975 mol)O₂ or 0.9875 mol O₂.

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