How much water do you need to add 200 g of sugar to get a 15% solution?
July 28, 2021 | education
| Let’s take the amount of water as x, then:
x + 200 is the mass of the resulting solution;
200: (x + 200) * 100 – concentration.
Since the concentration is 15% by condition, we get the equation:
200: (x + 200) * 100 = 15;
200: (x + 200) = 0.15;
0.15x + 30 = 200;
0.15x = 200-30;
x = 1133.
Answer: you need to take 1133 g of water.
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