How many grams of calcium chloride would you need to make 1 l of solution containing 5 ppm calcium (ca)?

Explanation:

The given data is as follows.

           Volume = 1 L,    Concentration of Ca = 5 ppm or 5 mg/L

As 1 mg = 0.001 g so, 5 mg /L will be equal to 0.005 g/l. Molar mass of calcium is 40.078 g/mol.

Hence, calculate molarity of calcium as follows.

           Molarity of Ca =

                                  =

         Molarity of Ca =

Hence, molarity of is . Since, volume is same so, moles of calcium chloride will be .

Thus, we can conclude that mass of will be as follows.

                    (molar mass of = 110.984 g/mol)

               = 0.0138 g

Thus, we can conclude that mass of is 0.0138 g.

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