Question

A solution contains 0.140 mol KCl in 2.100 L water. What is the concentration of KCl in g/L?

~0.0667 g/L
~0.294 g/L
~4.95 g/L

Answer 1

it is 4.95 on edg

Step-by-step explanation:

Answer 2

Answer;

≈ 4.95 g/L

Explanation;

The molar mass of KCl = 74.5 g/mole

Therefore; 0.140 moles will be equivalent to ;

= 0.140 moles × 74.5 g/mole

= 10.43 g

Concentration in g/L

= mass in g/volume in L

= 10.43/2.1

= 4.9667

≈ 4.95 g/L