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A 5.784 g of sample of a mixture containing NiSO 4 6H 2 O (MM = 262.9) and NaCl (MM = 58.44) yielded 4.193 g

A 5.784 g of sample of a mixture containing NiSO₄6H₂O (MM = 262.9) and NaCl (MM = 58.44) yielded 4.193 g a solid residue after this mixture was heated. Given this information, what is the % NiSO₄6H₂O in the mixture?

Report the answer to 3 significant figures.

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