Question

К 160 г 10% раствора сахара добавили еще 10 г сахара и 200г воды. Какова массовая доля сахара в полученном растворе. Помогите пожалуйста

Answer 1

Ответ:

m(сахара)=160×0,1=16г

m(ppa)=160+200=360г

w(сахара)=(16+10):360=0,0722=7,22%

Answer 2

Calculation of the Mass Fraction of Sugar in the Solution

To calculate the mass fraction of sugar in the solution, we need to consider the initial mass of the solution and the mass of sugar added.

Given: - Initial mass of the solution = 160 g - Concentration of the sugar solution = 10% - Mass of sugar added = 10 g - Mass of water added = 200 g

To calculate the mass fraction of sugar in the solution, we can follow these steps:

1. Calculate the mass of sugar in the initial solution: - Mass of sugar in the initial solution = (10% * 160 g) = 16 g

2. Calculate the total mass of sugar in the final solution: - Total mass of sugar = (mass of sugar in the initial solution + mass of sugar added) = (16 g + 10 g) = 26 g

3. Calculate the total mass of the final solution: - Total mass of the final solution = (initial mass of the solution + mass of water added) = (160 g + 200 g) = 360 g

4. Calculate the mass fraction of sugar in the final solution: - Mass fraction of sugar = (total mass of sugar / total mass of the final solution) * 100% - Mass fraction of sugar = (26 g / 360 g) * 100% ≈ 7.22%

Therefore, the mass fraction of sugar in the final solution is approximately 7.22%.

Please note that the calculations provided are based on the information given and may not account for other factors or variables that could affect the final result.