Question

Сколько надо взять соли и воды чтобы приготовить 500 гр. 30% раствора

Answer 1

150 грамм соли, и 350 воды

Answer 2

Calculating Salt and Water for a 30% Solution

To calculate the amount of salt and water needed to prepare a 500g 30% solution, we can use the formula:

Amount of salt (g) = Total mass (g) × Percentage concentration Amount of water (g) = Total mass (g) - Amount of salt (g)

Substituting the given values: Amount of salt (g) = 500g × 30% Amount of water (g) = 500g - Amount of salt (g)

Let's calculate the amounts.

Calculation

Amount of salt (g) = 500g × 30% = 150gAmount of water (g) = 500g - 150g = 350g

Therefore, to prepare a 500g 30% solution, you would need 150g of salt and 350g of water.