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Question- What is the mass percent concentration of the following solutions?

a) Dissolve 0.595mol of citric acid, C6H8O7, in 1.00 kg of water.

b) Dissolve 0.135mg of KBr in 5.00 mL of water. c)Dissolve 5.60g of aspirin, C9H8O4, in 145 g of dichloromethane, CH2Cl2.

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