Determine the mass fraction of salt in the solution if 12 g of salt is contained in 180 g of the solution.

To find out the mass fraction of salt in the specified saline solution, we use the formula: ωс = mс / m, where mс is the mass of salt (mс = 12 g); m is the mass of the specified brine solution (m = 180 g).

Let’s perform the calculation: ωс = mс / m = 12/180 = 0.06 (6) or 6, (6)%.

Answer: The mass fraction of salt in the indicated saline solution is 6, (6)%.

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