chemical-aritmatic

Related Questions

• The equivalent weight of an element is 4.Its chloride has a V.D 59.25.Then the valency of the element is

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• A solution containing $N{a_2}C{O_3}$ and $ NaOH $ requires 300 ml of 0.1 N HCl using phenolpthalein as an indicator. Methyl orange is then added to the above titrated solution when a further 25 ml of 0.2 N HCl is required. The amount of NaOH present in solution is $(NaOH = 40,\,N{a_2}C{O_3} = 106)$

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• An element forms two oxides containing respectively 53.33 and 36.36 percent of oxygen. These figures illustrate the law of

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• The number of oxygen atoms in 4.4 g of $C{O_2}$is approx.

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• How much coulomb charge is present on 1g ion of ${N^{3 - }}$

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