molarity and molality

Question

What is the molarity of a solution containing 9.8 g of H₂SO₄ in 500 mL of solution?

RankGuru · Accepted Answer

**Molarity ($M$)** = $\frac{	ext{moles of solute}}{	ext{Volume of solution (L)}}$
1. **Find Moles of $H_2SO_4$**:
   - Molar mass $= 2(1) + 32 + 4(16) = 98 	ext{ g/mol}$.
   - $	ext{Moles} = 9.8 / 98 = 0.1 	ext{ mol}$.
2. **Find Molarity**:
   - Volume $= 500 	ext{ mL} = 0.5 	ext{ L}$.
   - $M = 0.1 / 0.5 = 0.2 	ext{ M}$.

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