BaCl2 dissociates in water to give one Ba2+ ion and two Cl- ions. If concentrated HCl is added to this solution what willl happen to Ba2+ ions concentration?
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Q. The volume strength of 1.5 N solution is
A. 4.8
B. 8.4
C. 4.2
D. 2.4
Q.(i). Why in positive deviation from Raoult's Law?
Q.(ii). Why in positive deviation from Raoult's Law?
98. Calculate the pH of 0.625 M solution of CH3COONa (Ka value of CH3COOH is 1.754 x 10-5).
(a) 8 25
(b) 9 28
(c) 10.2
(d) 11.26
BaCl2 dissociates in water to give one Ba2+ ion and two Cl- ions. If concentrated HCl is added to this solution what willl happen to Ba2+ ions concentration?
Please dont send links and this is a single question.
I hope for a relevant answer.
Q1. The pH value of 10–7 M solution HCl is
(a) equal to 1
(b) equal to 2
(c) less than 7
(d) equal to 0
128. The RMS velocity of an ideal gas at 300 K is 12240 cm.. What is the most probable velocity (in cm.) at the same temperature ?
(A) 10000 (B) 11280
(C) 1000 (D) 12240
124. An acid HA ionises as
The pH of 1.0M solution is 5. Its dissociation
constant would be :
(a) 1*10-5 (b) 1*10-10
(c) 5 (d) 5*10-8
25. 30 ml of a solution of Barium Hydroxide on titration with a 0.2 molar solution of HCI acid gave a liter value of 40 ml. The molarity of Barium Hydroxide solution was.
(a) 0.23
(b) 0.32
(c) 0.26
(d) 0.11
7. The normality of 5 volumes of H2O2 is
(a) 2.78
(b) 5.80
(c) 6.80
(d) 1.78