A solution is prepared by dissolving 25.8 grams on magnesium chloride (MgCl2) in water to produce 250.0 mL of solution. Calculate the molarity of the chloride ion in the solution. 1. 0.271 Molar 2. 1.08 Molar 3. 0.453 Molar 4. 0.0271 Molar 5. 2.17 Molar
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First, we need to calculate the molar mass of magnesium chloride (MgCl2). The molar mass of Mg is about 24.3 g/mol, and that of Cl is about 35.5 g/mol. Since there are two Cl atoms in MgCl2, the total molar mass of MgCl2 is 24.3 + 2*35.5 = 95.3 g/mol. Show more…
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