Question

What is the molarity of a solution in

which 6.9mol of potassium chloride
(KCI) is dissolved in water to a final
volume of 1.8L?

Answer 1

Answer: 3.8

Step-by-step explanation:

Original answer is 3.83 but it needs significant figures so you need to round it to 2 significant figures

Answer 2

3.83 mol/ L

Step-by-step explanation:

Molarity is the amount of moles of a substance in a liter of solution.

1.8L ----- 6.9 mol of KCl

1L ----- 6.9 ÷1.8= 3.83 moles of KCl (3 s.f.)

Thus the molarity is 3.83 mol/L.