Question

Как найти массовую долю вещества

Answer 1

W%=n*Ar/Mr *100
Вроде так

Answer 2

Finding the Mass Fraction of a Substance

To find the mass fraction of a substance, you can use the formula W = m1/m2 or W = m1/m2 * 100%. Here, W represents the mass fraction, m1 is the mass of the substance, and m2 is the total mass of the mixture or solution. The mass fraction can also be expressed as a percentage.

For example, if you have the mass of the substance and the total mass of the mixture, you can use the formula W = m1/m2 to calculate the mass fraction. If you want to express the mass fraction as a percentage, you can use the formula W = m1/m2 * 100%.

This process allows you to determine the proportion of a substance within a given mixture or solution.