In 180 g of water, 20 g of soda was dissolved, determine the mass fraction of the solute.
| April 12, 2021 | education
The mass fraction of the solute is determined by the formula:
W (in-va) = m (in-va) / m (solution) • 100%.
Find the mass of the solution:
m (solution) = m (water) + m (water) = 20 + 180 = 200 g.
W (NaHCO₃) = 20/200 • 100% = 10%.
This means that the mass fraction of soda in the solution is 10%.
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