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Explanation:To find the number of grams of carbonate ions in the solution, we need to know the molar mass of carbonate ions and the number of milliequivalents (mEq) present. The molar mass of carbonate (CO32-) ions is 60.01 g/mol. To convert mEq to grams, we can use the following equation: Grams = (mEq * molar mass) / 1000 In this case, we are given that the solution contains 35 mEq of carbonate ions. Let's substitute these values into the equation: Grams = (35 mEq * 60.01 g/mol) / 1000 Simplifying: Grams = 2.10035 g Therefore, the solution contains approximately 2.10035 grams of carbonate ions