Goslarite, a hydrated zinc sulfate mineral (ZnSO4 7H20). is added to 1.7 L of water to form a zinc sulfate solution having a gravity of 37.6 °Be (heavier than water) and molarity of 2.1. (Atomic masses: Zn=65, S=32, O=16, H=1) a. How much goslarite must be added to obtain the desired solution? b. Find the composition of the resulting solution in wt%, mol%, molality.

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