To 25 g of a 50% salt solution, 75 g of water was added. determine the concentration of the resulting solution.
August 31, 2021 | education|
We find the mass of salt in 25 grams of solution.
To do this, multiply the weight of the solution by the concentration of salt in it.
25 * 50% = 25 * 0.5 = 12.5 grams.
We determine the new mass of the solution after 75 grams of water has been added to it.
25 + 75 = 100 grams.
Thus, the new salt concentration will be:
12.5 / 100% * 100% = 12.5%.
Answer: The new solution contains 12.5% salt.
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