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प्रश्न
How many grams of HCl are present in 0.1 mole of it?
उत्तर
1 mole of HCI has weight = 1 + 35.5 = 36·5 g
∴ 0.1 mole of HCl has mass = 0.1 x 36.5
= 3.65 g
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