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A 4.69g sample of MgCl2 is dissolved in enough water to give 750.0mL of solution. What...

A 4.69g sample of MgCl2 is dissolved in enough water to give 750.0mL of solution. What is the concentration of chloride ion in the solution?

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Answer #1

gram molar mass of MgCl2   = 24 + 35.5*2   = 95g/mole

volume of solution                = 750ml

mass of MgCl2                     = 4.69g

molarity   = W*1000/G.M.Wt* volume of the solution in ml

                = 4.69*1000/95*750    = 0.066M >>>>answer

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