6 Calculate the molarity of each of the following solutions

6. Calculate the molarity of each of the following solutions: a. b. 0.11 mole of LiNOs in 5.2 L of solution. 61.3 g C2HoO in 2.44 L of solution 0.0152 g of KI in 102 mL of solution. c.

Solution

Answer:-

Molarity describes the relationship between moles of a solute and the volume of a solution in liters.

Therefore the formula is,

Molarity = moles of solute / liters of solution

Part A :-

0.11 mole LiNO3 / 5.2 L = 0.02115 M of LiNO3

Part B :-

In this case first we calculate the number moles of C2H60

61.3 g C2H6O × (1mol / 46.07 g C2H6O) = 1.330 moles C2H60

Therefore plug value in above formula

1.3306 moles C2H60 / 2.44L = 0.545 M C2H60

Part C :-

In this case first we calculate the number moles of KI

0.0152g KI × (1 mol / 166.003 g KI) = 9.16 × 10^-5 moles KI

Therefore plug value in above formula

9.16 × 10^-5 moles KI / 0.102 L = 0.000898 M KI OR 8.98 × 10^-4M KI