Mole ConceptHard
Question
25 mL of an aqueous solution of KCl was found to require 20 mL of 1 M AgNO3 solution when titrated using a K2CrO4 as indicator. The depression in freezing point of KCl solution with 100% ionization will be:
[Kf = 2.0o mol-1 Kg and molarity = molality]
[Kf = 2.0o mol-1 Kg and molarity = molality]
Options
A.5.0o
B.3.2o
C.1.6o
D.0.8o
Solution
25 × M(KCl) = 20 × 1 M(AgNO3)
∴ M(KCl) = 0.8
ᐃTf = M′fi
= 0.8 × 2 × 2
∴ M(KCl) = 0.8
ᐃTf = M′fi
= 0.8 × 2 × 2
Create a free account to view solution
View Solution FreeMore Mole Concept Questions
A sample of protein was analysed for metal content and analysis revealed that it contained magnesium and titanium in equ...SO2 gas is slowly passed through an aqueous suspension containing 12 g of CaSO3 till the milkiness just disappears. What...What is the molarity of H2SO4 solution that has a density 1.84 gm/cc at 35oC and contains 98% by weight-...A sample of impure cuprous oxide contains 66.67% copper by mass. What is the percentage of pure Cu2O in the sample? (Cu ...What mass of solid ammonium carbonate H2NCOONH4 when vaporized at 273OC will have a volume of 8.96 L at 760 mm of pressu...