The mass fraction of salt in a solution prepared from 5 g of sodium chloride and 95 g of water is …
| April 8, 2021 | education
Given:
m (NaCl) = 5 g
m (H2O) = 95 g
To find:
ω (NaCl) -?
1) m solution (NaCl) = m (NaCl) + m (H2O) = 5 + 95 = 100 g;
2) ω (NaCl) = m * 100% / m solution = 5 * 100% / 100 = 5%.
Answer: Mass fraction of NaCl is 5%
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