general chemistry

Question

How many mL of 0.274 M solution must be measured out if 0.6934 g of H₂SO₄ is required?   mL

Answer 1

Convert 0.274 M to g H2SO4 / ml. Then we can find mls needed to provide 0.6934 g of H2SO4.

0.274 M = 0.274 mol H2SO4 / L x 98 g H2SO4 / mol x 1 L / 1000 ml = 0.02685 g H2SO4 / ml

(x ml)(0.02685 g / ml) = 0.6934 g and x = 25.8 mls needed (3 sig. figs.)