Question

Вычислите массу соли, которую нужно расстворить в 276 мл воды, чтобы получить 8% раствр этой соли

Answer 1

276/100=2.76
2.76*8=22.08

Answer 2

1)276/100=2,76мл
2)2,76×8=22,08 мл соли

Answer 3

Calculating the Mass of Salt in a 8% Solution

To calculate the mass of salt needed to make an 8% solution in 276 ml of water, we can use the formula:

% concentration = (mass of solute / total mass of solution) * 100

We can rearrange this formula to solve for the mass of solute:

mass of solute = (% concentration * total mass of solution) / 100

Substituting the given values: - % concentration = 8% - total mass of solution = mass of solute + mass of water - mass of water = 276 g (since 1 ml of water = 1 g)

Calculation

mass of solute = (8 * 276) / 100

mass of solute = 22.08 g

So, the mass of salt needed to make an 8% solution in 276 ml of water is 22.08 grams.