November 29, 2015

Homework Help: Chemistry

Posted by Olivia on Tuesday, December 13, 2011 at 7:43pm.

A 1.42-g sample of a pure compound, with formula M2SO4, was dissolved in water and treated with an excess of aqueous calcium chloride, resulting in the precipitation of all the sulphate ions as calcium sulphate. The precipitate was collected, dried, and found to weigh 1.36 g. Determine the atomic mass of M, and identify M.

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