A sample of mgcl2 is known to be contaminated with nacl. a, Ask an Expert

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A sample of MgCl2 is known to be contaminated with NaCl. A 3.47-g portion of the sample is dissolved in water and treated with an excess of AgNO3 solution. The precipitate is filtered off, dried and weighed. The dried precipitate weighs 10.3 g. Calculate the amount of MgCl2 in the original sample (in weight percent).

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