For pickling cucumbers, a 6% sodium chloride solution was prepared.

For pickling cucumbers, a 6% sodium chloride solution was prepared. Calculate how much salt and water you need to take to prepare 5 kg of such a brine.

1) Based on the formula:

mass fraction of solute in solution = mass of solute: mass of solution * 100%, where, according to the condition of the problem:

mass fraction of substance = 6%;

solution weight 5 kg = 5000 g,

find the value of the mass of the solute (sodium chloride NaCl):

6% = x: 5000 * 100%, therefore

x = 6%: 100% * 5000 g = 300 g.

2) find the mass of water:

mass of water = mass of solution – mass of solute = 5000 g – 300 g = 4700 g.

Answer: to obtain 5 kg of 6 – percent brine, you need to take 300 g of table salt and 4700 g of water.