Question

An ethanolic solution of naphthalene contains 0.25 mole of solute. Molarity of solution is?

Answer 1

0.25/22400×1000
2.5/224
0.01M

Answer 2

Hey dear,
You didn't mention volume of solution which is required for calculation of molarity. We'll just take 1 L solution fir calculations.

● Answer -
Molarity = 0.25 mol/L

● Explanation -
# Given -
moles of solute = 0.25 mol
volume of solution = 1 L

# Solution -
Molarity of a solution is calculated by formula -
Molarity = moles of solute / volume of solution
Molarity = 0.25 / 1
Molarity = 0.25 mol/l


Therefore, molarity of solution is 0.25 m.