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Hydrogen and oxygen combine in the ratio of 1 : 8 by mass to form water. What mass of oxygen

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asked Nov 4, 2017 in Chemistry by jisu zahaan (28,760 points) ● 26 ● 377 ● 816

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 3g of hydrogen gas?

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answered Nov 4, 2017 by sforrest072 (157,439 points) ● 61 ● 410 ● 949
selected Nov 5, 2017 by sarthaks
 
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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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