Question

Сколько граммов растворенного вещества и растворителя содержится в 48 граммах 8% раствора

Answer 1

W(вещества) = m (вещества) / m (раствора)

0,08 = m (вещества) / 48
m (вещества) = 48 x 0.08 = 3,84 г
m (H2O) = m (раствора) - m (вещества) = 48 - 3.83 = 44.16 г

Answer 2

Calculation of the Amount of Solute and Solvent in a 8% Solution

To calculate the amount of solute and solvent in a 48-gram 8% solution, we need to determine the mass of the solute and the mass of the solvent.

Step 1: Determine the mass of the solute: The solute is the substance that is dissolved in the solution. In this case, the solute is the dissolved substance in the 8% solution.

To find the mass of the solute, we can use the formula:

Mass of Solute = Percentage of Solute × Mass of Solution

In the given problem, the percentage of the solute is 8% and the mass of the solution is 48 grams.

Mass of Solute = 8% × 48 grams

Calculating this, we find:

Mass of Solute = 0.08 × 48 grams = 3.84 grams.

Therefore, the mass of the solute in the 48-gram 8% solution is 3.84 grams.

Step 2: Determine the mass of the solvent: The solvent is the substance that dissolves the solute. In this case, the solvent is the substance that makes up the remaining mass of the solution after the solute is added.

To find the mass of the solvent, we can subtract the mass of the solute from the mass of the solution:

Mass of Solvent = Mass of Solution - Mass of Solute

In the given problem, the mass of the solution is 48 grams and the mass of the solute is 3.84 grams.

Mass of Solvent = 48 grams - 3.84 grams

Calculating this, we find:

Mass of Solvent = 44.16 grams.

Therefore, the mass of the solvent in the 48-gram 8% solution is 44.16 grams.

In summary, in a 48-gram 8% solution, there are approximately 3.84 grams of solute and 44.16 grams of solvent.