A student adds 0.750 g of solid PbCO₃ (molar mass 267.2 g mol⁻¹) to 200.0 mL of pure…
CHEMISTRY · Single correct · AP · Chemistry · Equilibrium · Equilibrium
Problem
A student adds 0.750 g of solid PbCO₃ (molar mass 267.2 g mol⁻¹) to 200.0 mL of pure water at 25 °C and allows the mixture to reach equilibrium. The solubility-product constant for PbCO₃ at this temperature is 7.4×10⁻¹⁴. Which of the following is closest to the mass of PbCO₃ that remains undissolved?
(a) 0.000015g
(b) 0.749g
(c) 0.150g
(d) 0.750g