Chalk contains 3% of carbon,10% of calcium and 12% of oxygen.Find the amount in grams of each of these substances in 1kg of chalk.
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amount of carbon in chalk in 1kg or 1000g = 3% of 1000g = 3/100 x 1000g = 30g
amount of calcium in chalk in 1kg or 1000g = 10% of 1000g = 10/100 x 1000g = 100g
amount of oxygen in chalk in 1kg or 1000g = 12% of 1000 g = 12/100 x 1000g = 120g
Hope it helps...
amount of calcium in chalk in 1kg or 1000g = 10% of 1000g = 10/100 x 1000g = 100g
amount of oxygen in chalk in 1kg or 1000g = 12% of 1000 g = 12/100 x 1000g = 120g
Hope it helps...
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I hope this will help you.
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