Some carbonate compounds have limited solubility.MCO3(s) ⇋ M2+(aq) + CO32-(aq)The solubility constant Ksp for a carbonate compound MCO3, Ksp = 7.2E-7.A saturated solution of the compound MCO3, is made.Calculate the concentration of the ions M2+(aq) and CO32-(aq) in the saturated solution (check the stoichiometry, the ions will have the same concentration).Give your answer to three significant figures, using the exponential format, for example enter 0.0000382 as 3.82e-5 with no gaps and the -ve e if power is -ve.
Question
Some carbonate compounds have limited solubility.MCO3(s) ⇋ M2+(aq) + CO32-(aq)The solubility constant Ksp for a carbonate compound MCO3, Ksp = 7.2E-7.A saturated solution of the compound MCO3, is made.Calculate the concentration of the ions M2+(aq) and CO32-(aq) in the saturated solution (check the stoichiometry, the ions will have the same concentration).Give your answer to three significant figures, using the exponential format, for example enter 0.0000382 as 3.82e-5 with no gaps and the -ve e if power is -ve.
Solution
The solubility product constant expression for the reaction is:
Ksp = [M2+][CO32-]
Given that the stoichiometry of the reaction is 1:1, the concentration of M2+ and CO32- ions in the solution will be the same. Let's denote this concentration as x. Therefore, we can rewrite the expression as:
Ksp = x^2
We know that Ksp = 7.2E-7. So, we can solve for x:
x^2 = 7.2E-7 x = sqrt(7.2E-7) x = 8.485E-4
Therefore, the concentration of M2+ and CO32- ions in the solution is 8.485E-4 M.
Similar Questions
Calculate the amount of sodium carbonate (Na2CO3)(Na 2 CO 3 ) present in 200 ml of 2 M solution.
In carbonate hardness cations are
In carbonate hardness cations are ans. Mg2+ Ca2+ Na+ Both Ca2+ & Mg2+
Calcium carbonate decomposes at high temperature to form carbon dioxide and calcium oxide:CaCO3 ⟶ CO2 + CaOHow many grams of calcium carbonate are needed to form 93.02 L of carbon dioxide at STP?
Balance the following equations by adding the stoichiometric ratios and ionic charges (include the + or - charge). Do not leave the boxes blank or it will mark you incorrect. If the stoichiometry is 1 please insert 1 in the box(es) below. You don't have to add a 1 for the charge.Sodium carbonate is dissolved in water Na2CO3(s) → Na (aq) + CO3 (aq
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.