A 0.4548 g sample of a pure soluble chloride compound is dissolved in water, and all of the chloride ion is precipitated as AgCl by the addition of an excess of silver nitrate. The mass of the resulting AgCl is found to be 1.2054 g.
What is the mass percentage of chlorine in the original compound?
Please help. My teacher has not explain this and it is due tomorrow.
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