In a chemical interaction 10 g of hydrogen chloride is added to 20 g of zinc to form 24 g of zinc chloride and a certain amount of hydrogen gas. What mass of hydrogen gas is expected to be formed?
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6 g of hydrogen gas is expected to be formed
If 10g of hydrogen chloride is added to 20g of zinc then the mass will be 30g. And among that 30g, 24g of zinc chloride is to be formed so the remaining of it will be expected as hydrogen gas to be formed. So the remaining mass will be (30-24) i.e. 6g. So 6g of hydrogen gas is expected to be formed
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