To prepare 1 liter of a 1 molar (1 M) calcium chloride (CaCl₂) solution, you need to dissolve 110.98 grams of calcium chloride dihydrate (CaCl₂·2H₂O) in enough water to make a total volume of 1 liter. First, weigh out the appropriate amount of the solid CaCl₂, then add it to a volumetric flask or a beaker. After that, add distilled water gradually while stirring until the total volume reaches 1 liter. Ensure that the solution is well mixed before use.
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