Question

Сколько граммов соли и воды надо взять,чтобы получить 50г 5% ного раствора соли с условием и решением пожалуйста!!

Answer 1

Ответ:

w=m(в-ва)/m(р-ра)

0,05=х/50

➡️ х=0,05*50=2,5 г соли

m(H2O)=50-2,5=47,5 г

Answer 2

Calculating the Amount of Salt and Water for a 50g 5% Salt Solution

To calculate the amount of salt and water needed to make a 50g 5% salt solution, we can use the formula for calculating the mass of solute and solvent in a given solution.

Formula: The formula to calculate the mass of solute and solvent is: Mass of Solute = (Percentage / 100) * Mass of Solution Mass of Solvent = Mass of Solution - Mass of Solute

Given: - Mass of Solution (M) = 50g - Percentage of Salt (P) = 5%

Calculations: 1. Calculate the mass of salt (solute): Mass of Solute = (5 / 100) * 50 Mass of Solute = 2.5g

2. Calculate the mass of water (solvent): Mass of Solvent = 50 - 2.5 Mass of Solvent = 47.5g

Therefore, to make a 50g 5% salt solution, you would need to take 2.5g of salt and 47.5g of water.