To calculate the value of Q from the given concentrations:
The reaction quotient, Q, can be calculated like an equilibrium constant with the formula shown below:
*like in equilibrium expression solids are ignored
*the coefficient of the species in the balanced reaction will be their exponents in the equilibrium expression
Let's write the reaction as: MgCO3 (s) → Mg2+ (aq) + CO32- (aq)
What is the value of Q when the solution contains 2.50?10?3M Mg2+ and 2.00?10?3M CO32? ?
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