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 the mass percentage of benzene (C6H6) and carbon tetrachloride (CCl4) if 22 g of benzene is dissolved in 122 g of carbon tetrachloride.
Calculate the mole fraction of benzene in solution containing 30% by mass in carbon tetrachloride.
A solution is obtained by mixing 300 g of 25% solution and 400 g of 40% solution by mass. Calculate the mass percentage of the resulting solution.
An antifreeze solution is prepared from 222.6 g of ethylene glycol (C2H6O2) and 200 g of water. Calculate the molality of the solution. If the density of the solution is 1.072 g mL−1, then what shall be the molarity of the solution?
What is molal depression constant? Does it depend on nature of the solute?
Which of the following is a quantitative description of the solution?
The mole fraction of the solute in one molal aqueous solution is ____________.
The number of moles of NaCl in 3 litres of 3 M solution is ____________.
Which of the following is a correct statement for C2H5Br?
Define the following modes of expressing the concentration of a solution. Which of these modes are independent of temperature and why?
V/V (volume percentage)
Define the following modes of expressing the concentration of a solution. Which of these modes are independent of temperature and why?
ppm. (parts per million)
Define the following modes of expressing the concentration of a solution. Which of these modes are independent of temperature and why?
m (Molality)
What is the ratio of mass of an electron to the mass of a proton?
What is the normality of 0.3 m H3Pcl solution?
Calculate the mass percent of benzene (CoH6) and carbon tetrachloride (ccl4) if 22 g of benzene is dissolved in 122 g of carbon tetrachloride.
138 g ethyl alcohol is mixed with 72 g of water. The ratio of mole fraction of alcohol to water is ______.
4.5 g of compound A (MW = 90) was used to make 250 mL of its aqueous solution. The molarity of the solution in M is x × 10−1. The value of x is ______. (Rounded-off to the nearest integer)
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]
The mole fraction of a solute in a 100 molal aqueous solution is ______ × 10-2. (Round off to the Nearest Integer).
[Given :Atomic masses : H : 1.0 u, O : 16.0 u]
The depression in freezing point of water observed for the same amount of acetic acid, trichloroacetic acid and trifluoroacetic acid increases in the order given above. Explain briefly.
