hydrogen and oxygen combine in the ratio 1 ratio 8 by mass to form water what mass of oxygen would be required to react completely with 3 gram of hydrogen gas is 24 gram tell which law of combination will govern the answer ?
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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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