Given the reaction: 2 H2 + O2 => O2 = 2 H2O. What is the total mass of water formed when 497.80 g of oxygen reacts with hydrogen?

asked Sep 8, 2022 45.9k views

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Given the reaction: 2 H2 + O2 => O2 = 2 H2O.

What is the total mass of water formed when 497.80 g of oxygen reacts with hydrogen?

by Whit

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7 votes

Mol of oxygen = mass / Mr = 15.556
1:2 mol ratio so multiple by 2
= 31.1125 mol of water
Mass = mol x Mr
= 31.1125 x 18 = 560.025g

Saad Abdullah answered Sep 13, 2022

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