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प्रश्न
Carbon monoxide (CO) contains carbon and oxygen in the mass ratio of 3:4. How much oxygen will combine with 9 g of carbon to form carbon monoxide?
अति संक्षिप्त उत्तर
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उत्तर
12 g of oxygen. For every 3 g of carbon, 4 g of oxygen combines. Hence, the mass of oxygen required is (9 × 4)/3 = 12 g.
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