chemical-aritmatic

Related Questions

• The prefix ${10^{18}}$ is

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• 100 ml of 0.1 N hypo decolourised iodine by the addition of $x$ g of crystalline copper sulphate to excess of KI. The value of $‘x’$ is (molecular wt. of $CuS{O_4}.5{H_2}O$is 250)

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• One gram of hydrogen is found to combine with 80g of bromine one gram of calcium valency=2 combines with 4g of bromine the equivalent weight of calcium is

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• A sample of calcium carbonate $(CaC{O_3})$ has the following percentage composition : Ca = 40%; C = 12%; O = 48% If the law of constant proportions is true, then the weight of calcium in 4 g of a sample of calcium carbonate obtained from another source will be

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• What will be the volume of $C{O_2}$ at NTP obtained on heating 10 grams of (90% pure) limestone

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