10 ml of FeC2O4 solution requires 30 ml of 0.4 M KMnO4 solution in acidic medium for titration. 25 ml of the same FeC2O4 solution is mixed in some water to make a solution containing 900g of water. Which of the following is/are true for this solution?Kf for water =1.8/Kkg/mol )
see full answer
Your Exam Success, Personally Taken Care Of
1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.
An Intiative by Sri Chaitanya
a
Freezing point of the solution is 0.2 K
b
The RLVP of the solution is approximately 2×10−3
c
Osmotic pressure of the initial FeC2O4 solution is 49.2 atm at 300 K
d
Osmotic pressure of the initial KMnO4 solution (without acid) is 19.68 atm at 300 K
answer is A.
(Unlock A.I Detailed Solution for FREE)
Best Courses for You
JEE
NEET
Foundation JEE
Foundation NEET
CBSE
Detailed Solution
FeC2O4+KMnO4→ Mn2++Fe3++CO2⇒ 10 ×3×M=30×0.4×5M=2⇒π=2×0.82×300×2=49.2 atm ×2=98.4 atmπKMnO4=0.4×0.082×300×2=19.68 atmIn the new FeC2O4 solution nFeC2O4=251000×2=120RLVP=120×2120×2+90018=110110+50=1500andΔT1=1.8×1200.9×2=2×1.8×118=0.2KTf=−0.2K