Question

how many moles of solute are in 250 ml of 2.0 m hcl?
a 0.75 mol
b 0.25 mol
c 0.50 mol
d 0.125 mol

Explanation:

Step1: Convert volume to liters

Volume \( V = 250\space mL=\frac{250}{1000}\space L = 0.25\space L\)

Step2: Use the formula \(n = M\times V\)

Molarity \(M = 2.0\space M\), so \(n=2.0\space M\times0.25\space L\)
\(n = 0.50\space mol\)

Answer:

C. \(0.50\space mol\)