Calculate the mass of salt contained in 50 g of 12% potassium bromide solution.
| July 2, 2021 | education
Determine the mass of potassium bromide in solution by the formula:
W (in-va) = m (in-va) / m (solution) • 100%.
We get the expression:
m (salt) = W (salt) • m (solution) / 100% = 12 • 50/100 = 6 g.
The mass of water in the salt solution is:
m (water) = m (solution) – m (salt) = 50 – 6 = 44 g.
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