To 7 l of 60% acid solution, 3 l of water was added. Determine the percentage of acid in the resulting solution.
| December 24, 2020 | education
1) 7 • 0.6 = 4.2 (l) -acids in 7 liters of solution
2) 7 + 3 = 10 (l) -solution became after adding water.
3) Let’s solve using proportions:
10x = 100 * 4.2
10x = 420
x = 42%
Answer: 42% acid content in the resulting solution.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
