Calculate the mass of salt and mass of water required to prepare 30 g of a 32% salt solution?
| February 27, 2021 | education
To calculate the mass of a substance in a solution with a percentage concentration, we use the formula:
W (in-va) = m (in-va) / m (solution) • 100%.
From here we get:
m (salt) = W (salt) • m (solution) / 100% = 32 • 30/100 = 9.6 g.
The mass of water in solution is:
m (water) = m (solution) – m (salt) = 30 – 9.6 = 20.4 g.
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