We are to find the identity of the cation in a chloride salt given the mass percent. From the formula of MCl2 there are 2 moles of the chlorine atom for every mole of the compound. Meanwhile, 1 mole of M is present in 1 mole of the chloride salt.
A chloride salt MCl2 is 63.89% chlorine by mass. What is the identity of M?
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