One liter of water is mixed with excess CaCO3(s) ,setting up the following equilibrium.CaCO₃(s) $\leftrightarrows$ Ca²⁺(aq) + CO₃^2-(aq)
What is the effect on the solubility of CaCO₃(s) as HNO₃(aq) is added? (assume no change in volume)

Question

One liter of water is mixed with excess CaCO3(s) ,setting up the following equilibrium.CaCO₃(s)

\leftrightarrows

Ca²⁺(aq) + CO₃^2-(aq)
What is the effect on the solubility of CaCO₃(s) as HNO₃(aq) is added? (assume no change in volume)

Quizplus · Accepted Answer

The addition of HNO3, an acid, will react with CO3^2- ions to form H2CO3, which decreases the concentration of CO3^2- ions in the solution. This shift in equilibrium will increase the solubility of CaCO3 as more solid dissolves to replace the CO3^2- ions.

One Liter of Water Is Mixed with Excess CaCO3(s),setting Up ⇆\leftrightarrows⇆

One Liter of Water Is Mixed with Excess CaCO3(s),setting Up $\leftrightarrows$