To 160 g of a 10% salt solution was added 40 g of a 30% salt solution. What is the percentage of salt in the resulting solution?
| September 26, 2021 | education
We find the mass of salt in each solution.
To do this, multiply the total weight of the solution by the percentage of salt in it.
Will:
160 * 10% = 160 * 0.1 = 16 g (in the first).
40 * 30% = 40 * 0.3 = 12 g (in the second).
Determine the total mass of the two solutions.
160 + 40 = 200 grams.
Find the total weight of the salt in the two solutions.
16 + 12 = 28 grams.
From this it follows that the concentration of salt in the resulting solution will be equal to:
28/200 * 100% = 0.14 * 100% = 14%.
Answer:
fourteen%.
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