First determine whats needed As we only need \u00bc of a liter we need only \u00bc as

First determine whats needed as we only need ¼ of a

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First determine what’s needed. As we only need ¼ of a liter, we need only ¼ as much CuSO 4 , or ¼ x 0.200 mole = 0.0500 mole CuSO 4 · 5H 2 O. Calculate the mass in grams of 0.0500 mole of CuSO 4 · 5H 2 O. We need the molar mass of CuSO 4 · 5H 2 O. The 5 waters of hydration are integral to the copper sulfate crystals, so they must be included in calculating the molar mass. copper 1 x 63.546 g/mol sulfur 1 x 32.065 g/mol oxygen 9 x 15.999 g/mol (4 from sulfate, 5 from 5H 2 O) hydrogen 10 x 1.0079 g/mol (from the 5 waters of hydration) copper(II) sulfate pentahydrate 249.681 g/mol
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