Answer to Question #234763 in General Chemistry for james

Question

The electrolyte in automobile lead batteries is a 4.04 M sulfuric acid (H ₂SO ₄) solution. Calculate the mass percent of solute if the density of the solution is 1.161 g/mL. Express final answer in two decimal places.

Answer 1

Solution

$1.161 \frac{g}{ml}\times{\frac{1000ml}{1L}}=1.161 \times 10^3$

4.04$mol\times {\frac{98.1gH_2SO_4}{1mol}}=396.32g$

Mass percent of the solute

$=\frac{396.32g}{1161g} \times100=34.14$

Mass percent of H₂SO₄ = 34.14%