How many grams of water and salt do you need to take to prepare 30 grams of 15% salt solution?
| June 22, 2021 | education
Given:
m solution (salt) = 30 g
ω (salt) = 15%
To find:
m (water) -?
m (salt) -?
Decision:
1) m (salt) = ω (salt) * m solution (salt) / 100% = 15% * 30/100% = 4.5 g;
2) m (water) = m solution (salt) – m (salt) = 30 – 4.5 = 25.5 g.
Answer: The mass of salt is 4.5 g; water – 25.5 g.
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.
