How much salt and water do you need to take to prepare 50 grams of a 16% solution?

If we have a solution in which we know the percentage mass of salt, then we can calculate the mass of this salt. In total, we have 50 grams of solution – this means that we have 100% of the substance, we also know that 16% in this substance is salt. So we add up the proportion: 50 g – 100%; and 16% – x. Hence x = 50 * 16/100; X = 8 grams. Now we know that 50 grams of solution contains 8 grams of salt, so the rest will be water: 50 – 8 = 42. To obtain a 16% salt solution, you need to take 8 grams of salt and 42 grams of water. Another way: 16% in 100 grams of the substance will be 16 grams, and in 50 grams of the solution is half as much – 8 grams.