Question

Hydrogen and oxygen combine in the ratio of 1:8 what would be the mass of water required to react completely with 4 g of hydrogen gas and 34 g of oxygen gas?

Answer 1

Answer:

It is given that the ratio of hydrogen and oxygen by mass to form water is 1:8. Then, the mass of oxygen gas required to react completely with 1g of hydrogen gas is 8g. Therefore, the mass of oxygen gas required to react completely with 3g of hydrogen gas is 8 × 3g = 24 g.

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Answer 2

Answer:

Explanation:

Given ;

the ratio of hydrogen and oxygen by mass to form water is 1:8.

Required;

the mass of oxygen gas required to react completely with 1g of hydrogen gas is 8g.

Therefore,

the mass of oxygen gas required to react completely with 4g of hydrogen gas is

8 × 4g = 32 g.