Hydrogen and oxygen combine in the ratio of 1: 8 by mass to form water. What mass of oxygen gas would be required to react completely with 3 g of hydrogen gas?

Academic Chemistry NCERT Class 9

The ratio of H: O by mass in water is:

Hydrogen: Oxygen —> H2O

∴ 1 : 8 = 3 : x

x = 8 x 3

x = 24 g

∴ 24 g of oxygen gas would be required to react completely with 3 g of hydrogen gas.

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Updated on: 14-Mar-2023

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