Chemistry HW help

Question

How many moles of potassium iodide must be dissolved in 3.5Kg of water to produce a 0.060 molal KI solution?

Answer 1

molal = moles of solute per kg of solvent

0.060 m = x mol / 3.5 kg

x mol = 0.21 moles needed

Looking at this another way...

0.06 mol / kg x 3.5 kg = 0.21 moles needed