Courses
Courses for Kids
Free study material
Offline Centres
More
Store Icon
Store
seo-qna
SearchIcon
banner

The solubility of calcium hydroxide is smol.litere1. The solubility product under the same condition will be:
A.4s3
B.2s3
C.2s2
D.s3

Answer
VerifiedVerified
496.2k+ views
like imagedislike image
Hint: Solubility is the maximum amount of solute that can dissolve in a known quantity of solvent at a certain temperature. The solubility product is calculated with help of the solubility of the
compound and mole of the compound.

Complete Step by step solution:
The solubility product is calculated with equilibrium constant and its value depends on temperature. Ksp increases with an increase in temperature when temperature increase solubility is also increased.
For the reaction
AaBb(s)aA+(aq)+bB(aq)
The solubility expression is Ksp=[Ab+]a[Ba]b
For these equations:
1.A and B represent different ions and solids. In these equations, there are also referred to as “products”.
2.a and b represent coefficients used to balance the equation.
3.(aq) and (s) indicate which state the products are in (aqueous or solid, respectively)
4.Brackets stand for molar concentration.

With the use of the above example, we calculate the solubility product of calcium hydroxide,
Calcium hydroxide is dissolved into Ca2+ and 2OH
Ca(OH)2[Ca2+]+[OH]2
Ca(OH)2 Is a solid, its concentration before and after the reaction is the same. The equilibrium equation can be :
Ksp=[Ca(OH)2]
Ksp is known as the solubility product of concentrations of ions of both barium and sulphate is equal to the solubility product constant. In the above reaction, calcium hydroxide is taken ‘s’ as the value of solubility.
 [Ca2+]=smollit1
[OH]=2smollit1
The solubility product Ksp=[Ca2+][OH]=s(2s)2=4s3

Thus the answer is (A)

Note: To write Ksp expressions, correctly, you need to have a good knowledge of chemical names, polyatomic ions, and the charges associated with each ion. In these equations, each concentration(represented by square brackets) is raised to the power of its coefficient in the balanced Ksp expression. Unlike Ka and Kb for acids and bases, the relative values Ksp cannot be used to predict the relative solubilities of salts if the salts being compared produce a different number of ions. The solubility product is the product of the solubilities of the ions in units of molarity (mollit1)
Latest Vedantu courses for you
Grade 11 Science PCM | CBSE | SCHOOL | English
CBSE (2025-26)
calendar iconAcademic year 2025-26
language iconENGLISH
book iconUnlimited access till final school exam
tick
School Full course for CBSE students
PhysicsPhysics
ChemistryChemistry
MathsMaths
₹41,848 per year
EMI starts from ₹3,487.34 per month
Select and buy