Advertisements
Advertisements
प्रश्न
If the solubility product of CuS is 6 × 10−16, calculate the maximum molarity of CuS in aqueous solution.
Advertisements
उत्तर
Maximum molarity of CuS in an aqueous solution = Solubility of CuS in mol L−1
If S is the solubility of CuS in mol L−1, then,
\[\ce{CuS <=> Cu^{2+} + S^{2-}}\]
Ksp = [Cu2+][S2−]
= S × S
= S2
∴ S2 = 6 × 10−16
S = `sqrt (6 xx 10^-16)`
= 2.45 × 10−8 mol L−1
This is the maximum amount of CuS in 1 L of solution.
∴ The maximum molarity of the solution is 2.45 × 10−8 M.
संबंधित प्रश्न
Calculate (a) molality (b) molarity and (c) mole fraction of KI if the density of 20% (mass/mass) aqueous KI is 1.202 g mL−1.
If the density of some lake water is 1.25 g mL−1 and contains 92 g of Na+ ions per kg of water, calculate the molality of Na+ ions in the lake.
What is molal depression constant? Does it depend on nature of the solute?
When a solute is present in trace quantities the following expression is used:
Molarity of liquid HCl will be if the density of the solution is 1.17 gm/cc.
The molarity of the solution containing 7.1 g of Na2SO4 in 100 ml of aqueous solution is ____________.
The molarity of pure water is ____________.
25 ml of a solution of barium hydroxide on titration with a 0.1 molar solution of hydrochloric acid gave a titre value of 35 ml. The molarity of barium hydroxide solution was ______.
For preparing 0.1 N solution of a compound from its impure sample of which the percentage purity is known, the weight of the substance required will be:
Define the following modes of expressing the concentration of a solution. Which of these modes are independent of temperature and why?
x (mole fraction)
Define the following modes of expressing the concentration of a solution. Which of these modes are independent of temperature and why?
M (Molarity)
The de Broglie wavelength of a car of mass 1000 kg and velocity 36 km/hr is :
A solution has been prepared by dissolving 5 g of urea in 95 g of water. What is the mass percentage of urea in the solution?
A sample of Ferrous sulphide reacts with dil. H2SO4 to from H2S which contains 9% hydrogen by volume. The percentage of fee in the sample, is ______.
The molarity of the solution prepared by dissolving 6.3 g of oxalic acid (H2C2O4 · 2 H2O) in 250 mL of water in mol L-1 is x × 10-2. The value of x is ______. (Nearest integer)
[Atomic mass: H : 1.0, C : 12.0, O : 16.0]
4 ml of pure A (d = 2.45 gm/ml) was added to 46 ml of B (d = `25.1/23` gm/ml), the molarity of a solution of A in B will be ______, if the density of the final solution is 1.8 gm/ml.
Given: Molar mass of A = 98, Molar mass of B = 46
Calculate the molarity of the following solution:
30 mL of 0.5 M H2SO4 diluted to 500 mL.
