How to prepare 500 grams of 10% brine? (NaCl)

univerkov | September 5, 2021 | education

Given:
m solution (NaCl) = 500 g
ω (NaCl) = 10%

Find:
m (NaCl) -?
m (H2O) -?

1) m (NaCl) = ω (NaCl) * m solution (NaCl) / 100% = 10% * 500/100% = 50 g;
2) m (H2O) = m solution (NaCl) – m (NaCl) = 500 – 50 = 450 g.

Answer: The mass of NaCl is 50 g; H2O – 450 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.