Calculate the mass fraction of the solute in the solution obtained by dissolving 50 g of sodium
| July 6, 2021 | education
Calculate the mass fraction of the solute in the solution obtained by dissolving 50 g of sodium hydroxide in 250 g of water.
Mass fraction is the ratio of the mass of the solute to the total mass of the solution. It is expressed as a percentage of the total mass of the solution: w = (m / M) * 100, where w is the mass fraction (%), m is the mass of the solute (g), M is the total mass of the solution (g).
In our case, we have a solution of 50 g of sodium hydroxide in 250 g of water. The total mass of the solution: 50 + 250 + 300 g. Hence, taking into account the above: w = (50/300) * 100 = 16.67%.
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