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How many grams of CaCl2 are needed to make a solution with a concentration of 3.0 m from 2.25 kg of water?


A. 7.5 x 102 g CaCl2

B. 7.50 kg CaCl2

C. 7.50 × 10–2 kg CaCl2

D. All of the Above

E. None of the Above

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