Question

07. In a solution, the concentration of CaCl is 5 M and concentration of
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specific gravity of the solution is 1.05, the concentration of CT in the solution is
[a] 10M
[b] 20 M
[C] 18.5 M
Do 17.12 M​

Answer 1

Answer:

1 mole of CaCl2 has 2 moles of Cl-

5 moles of CaCl2 has = 2x5 = 10 moles of Cl-

1 mole of MgCl2 has 2 moles of Cl-

5 moles of MgCl2 has = 2x5 = 10 moles of Cl-

Total number of moles of Cl- = 10 + 10

                                             = 20 moles

The concentration of Cl ions in the solution in terms of molarity

                                                = 20M

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