Calculate what mass of table salt is needed to prepare 250 ml of a 0.4M solution of this salt.
| June 10, 2021 | education
In one liter of solution, the salt concentration should be 0.4 mol / liter.
The amount of salt in 0.25 liters will be 0.4 x 0.25 = 0.1 mol;
Let’s find the mass of this amount of salt.
M NaCl = 23 + 35.5 = 58.5 grams / mol;
The mass of salt will be:
m NaCl = 58.5 x 0.1 = 5.85 grams;
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