What is the exact molarity (in ) of an aqueous solution if of are uniformly dissolved to make a fina — Solutions and Colligative Properties Chemistry Question
Question
What is the exact molarity (in $\text{mol L}^{-1}$) of an aqueous solution if $0.50\text{ moles}$ of $H_2SO_4$ are uniformly dissolved to make a final solution volume of $250\text{ mL}$?
Answer: 2
💡 Solution & Explanation
Molarity ($M$) measures the number of moles of solute present per litre of solution. Formula: $M = \frac{n}{V(\text{in L})}$. Given $n = 0.5\text{ moles}$ and $V = 250\text{ mL} = 0.25\text{ L}$. Substituting these values yields $M = \frac{0.5}{0.25} = 2\text{ M}$.
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