Carl's chemistry teacher asked him to make a 1 m sodium chloride solution. carl measured 58.44 grams nacl, added it to a volumetric flask, and then added enough water to make a 1 liter solution. carl's lab partner told him that he had made the 1 m solution incorrectly. how would you respond to her comment regarding carl's lab technique?

After measuring the solute, Carl should first dissolve the solid in a small amount of DI water before diluting to the total volume.

Explanation:

To ensure that all the solute dissolves in the solution, first dissolve the solid in less than the total volume of solution needed.

Molarity is the moles of solute dissolved in 1 liter of the solution.

1 M NaCl solution is 1 moles of NaCl in 1 L of the solution.

Here the solute is NaCl and its molar mass is 58.44 g/mol. So measuring out 58.44 g of NaCl gives 1 moles of NaCl. Carl then added water to bring the volume up to 1 Liter. Carl's lab technique is correct.

the answer is 75.0%.