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4. a. How many grams of Cu(NO3)2 (s) are needed to make 0.500 L of 0.200 M solution? b. What is the molality of this

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4. a. How many grams of Cu(NO3)2 (s) are needed to make 0.500 L of 0.200 M solution? b. What is the molality of this solution? (d = 1.001 g/mL) = C. What is the colligative molality? d. What is the freezing point of the resulting solution? (For water, kr= 1.86 C/m)

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