Question

What is the total number of grams of potassium fluoride
(molar mass = 58 g/mol) needed to make 9.4 liter of a 6.17 M solution?

Answer 1

Explanation:

molarity=no. of moles of solute/solution in litres

6.17M=no. of moles of solute/9.4 L

6.17×9.4=no. of moles of solute

57.9 =no. of moles of potassium fluoride KF

no. of moles=given mass /molar mass

57.9=given mass/58

3358.2 g