Question

Вычислить массовую долю HCL в растворе, содержащем 14,6г HCL и 385,4г воды.

Answer 1

1.Найдем массу раствора:m(раствора)=m(H2O)+m(HCl)=385,5+14,6=400,1 г2. Отношение массы растворенного вещества к массе всего раствора и есть,массовая доля:w(HCl)=m(HCl)/m(раствора)=14,6/400,1=0,0365 или 3,65% 

Answer 2

Calculation of Mass Fraction of HCl in the Solution

To calculate the mass fraction of HCl in the solution, we need to determine the mass of HCl and the mass of water in the solution.

Given: - Mass of HCl = 14.6 g - Mass of water = 385.4 g

To find the mass fraction of HCl, we divide the mass of HCl by the total mass of the solution (HCl + water) and multiply by 100.

Let's calculate it step by step:

1. Calculate the total mass of the solution: - Mass of HCl + Mass of water = 14.6 g + 385.4 g = 400 g

2. Calculate the mass fraction of HCl: - Mass fraction of HCl = (Mass of HCl / Total mass of the solution) * 100 - Mass fraction of HCl = (14.6 g / 400 g) * 100 = 3.65%

Therefore, the mass fraction of HCl in the solution is 3.65%.