Question

СРОЧНО!!! Определите массовую долю соли в растворе, полученом из 180 г воды и 20 г хлорида натрия

Answer 1

Ответ:

10%

Объяснение:

Общая масса раствора составляет 180 г + 20 г = 200 г.

Массовая доля соли составляет 20 г / 200 г * 100% = 10%

Answer 2

Calculating the Mass Fraction of Salt in the Solution

To determine the mass fraction of salt in the solution, we can use the formula:

Mass Fraction = (Mass of Salt / Total Mass of Solution) x 100%

Given: - Mass of water = 180 g - Mass of sodium chloride (salt) = 20 g

Using the formula, we can calculate the mass fraction of salt in the solution:

Mass Fraction = (20 g / (180 g + 20 g)) x 100%

Mass Fraction = (20 g / 200 g) x 100%

Mass Fraction = 10%

Therefore, the mass fraction of salt in the solution is 10%.

[[4 #]] provides information about the mass fraction of different salts in a solution, which can be used to verify the calculation.