400 g of 20% syrup was diluted with 100 g of water. What is the concentration of the syrup?
| May 25, 2021 | education
The percentage mass concentration of a substance in a solution is the ratio of its mass to the mass of the solution, multiplied by 100%.
This task is solved in three steps.
1) Let’s calculate the mass of the syrup in the initial solution:
(20%: 100%) * 400 = 80 g.
2) Find out the total mass of the new solution:
400 + 100 = 500 g.
3) Calculate the concentration of the syrup in the new solution:
(80: 500) * 100% = 16%.
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