K_sp of BaSO4 is 1.2 x 10^-10 (molar mass 233 g mol^-1). Calculate the mass of BaSO4 that dissolves in 500 mL of pure water, in mg (two decimals).

JEE Main levelNumerical answerDifficulty 2 of 3ie191

$K_{s p}$ of $BaSO X_{4}$ is $1.2 \times 1 0^{- 10}$ (molar mass $233 g mo l^{- 1}$ ). Calculate the mass of $BaSO X_{4}$ that dissolves in $500 mL$ of pure water, in mg (two decimals).

Numerical answer type, answer in mg, tolerance 0.02.

s = K_{s p} = 1.1 \times 1 0^{- 5} M

. Mass

= s \times 233 \times 0.5 L = 1.276 e - 03 g = 1.28 mg