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{"ops":[{"insert":"A sample of 0.745 g of KCl is dissolved in 51.8 g of water. What is the percent by mass of KCl in the solution.\n\u00a0\nCalculate the molality of a sulfuric acid solution containing 23.2g of sulfuric acid in 192g of water. The molar mass of sulfuric acid is 98.08 g.\n\u00a0\n\u00a0What is the molality of a solution containing 8.82 g of Urea (NH"},{"attributes":{"script":"sub"},"insert":"2"},{"insert":")"},{"attributes":{"script":"sub"},"insert":"2"},{"insert":"CO in 216g of water.\n\u00a0\u00a0\n\u00a0A sample of 5.42 g of naphthalene is dissolved in 79.8g of benzene (C"},{"attributes":{"script":"sub"},"insert":"6"},{"insert":"H"},{"attributes":{"script":"sub"},"insert":"6"},{"insert":"). Calculate the percent by mass of naphthalene in the solution.\n\u00a0\n\u00a0\u00a0Calculate the percent by mass of the solution in each of the following aqueous solutions.\na)\u00a0\u00a0\u00a0\u00a05.50 g of NaBr in 78.2 g of solution\nb)\u00a0\u00a0\u00a0\u00a031.0 g of KCl in 152g of water\nc)\u00a0\u00a0\u00a0\u00a04.5g of toluene in 29g of benzene\n\u00a0\u00a0\u00a0\n\u00a0Calculate the molality of each of the following solutions \na)\u00a0\u00a0\u00a0\u00a014.3 g of sucrose in 676 g of water\nb)\u00a0\u00a0\u00a0\u00a07.20 moles of ethylene glycol (C"},{"attributes":{"script":"sub"},"insert":"2"},{"insert":"H"},{"attributes":{"script":"sub"},"insert":"6"},{"insert":"O"},{"attributes":{"script":"sub"},"insert":"2"},{"insert":") in 354 g of water\n\u00a0\n\u00a0\nCalculate the molality of a 34.6 percent (by mass) aqueous solution of sodium chloride.\n"}]}

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