Question

Найти массу вещества в растворе масса которого 300грамм массовая доля вещества 5%

Answer 1

300*5:100=15%(вещества)
Ответ:15%масса вещества в растворе

Answer 2

Finding the Mass of Substance in a Solution with a Mass Fraction of 5%

To find the mass of the substance in a solution with a mass fraction of 5%, we can use the formula:

Mass of Substance = Mass of Solution × Mass Fraction

Given: - Mass of the solution = 300 grams - Mass fraction of the substance = 5%

Using the formula, we can calculate the mass of the substance in the solution.

Mass of Substance = 300 grams × 5%

Calculating the mass of the substance:

Mass of Substance = 300 grams × 0.05 Mass of Substance = 15 grams

Therefore, the mass of the substance in the solution with a mass fraction of 5% is 15 grams.