Question

a solution contains 1.5 mol of koh in 750 ml of solution. what is the molarity?
a 0.5 m
b 1.125 m
c 2.0 m
d 1.0 m

Explanation:

Step1: Convert volume to liters

Volume \( V = 750\space mL=\frac{750}{1000}\space L = 0.75\space L\)

Step2: Use molarity formula

Molarity \( M=\frac{n}{V}\), where \(n = 1.5\space mol\) (moles of \(KOH\)) and \(V=0.75\space L\)
\(M=\frac{1.5\space mol}{0.75\space L}=2.0\space M\)

Answer:

C. \(2.0\space M\)