EASY
JEE Main
IMPORTANT
Earn 100

CO2 gas is bubbled through water during a soft drink manufacturing process at 298 K. If CO2 exerts a partial pressure of 0.835 bar then x m mol of CO2 would dissolve in 0.9 L of water. The value of x is _______. (Nearest integer)

(Henry's law constant for CO2 at 298 K is 1.67×103 bar)

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Important Questions on Solutions

HARD
JEE Main
IMPORTANT
If a compound AB dissociates to the extent of 75% in an aqueous solution, the molality of the solution which shows a 2.5 K rise in the boiling point of the solution is ___ molal. (Rounded-off to the nearest integer) Kb=0.52K kg mol-1.
MEDIUM
JEE Main
IMPORTANT
1 molal aqueous solution of an electrolyte A2 B3 is 60% ionised. The boiling point of the solution at 1 atm is _____ K. (Rounded-off to the nearest integer) [Given Kb for H2O=0.52 K kg mol-1]
MEDIUM
JEE Main
IMPORTANT
C6H6 freezes at 5.5°C. The temperature at which a solution of 10 g of C4H10 in 200 g of C6H6 freeze is _______C. (nearest integer value), (The molal freezing point depression constant of C6H6 is 5.12°C/m.)
HARD
JEE Main
IMPORTANT

When 9.45 g of ClCH2COOH is added to 500 mL of water, its freezing point drops by 0.5°C. The dissociation constant of ClCH2COOH is x×10-3. The value of x is off to the nearest integer)

KfH2O=1.86 K kg mol-1

EASY
JEE Main
IMPORTANT
4.5 g of compound AM.W.=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)
MEDIUM
JEE Main
IMPORTANT
Which one of the following 0.06 M aqueous solutions has lowest freezing point ?
MEDIUM
JEE Main
IMPORTANT
If the concentration of glucose C6H12O6 in blood is 0.72 gL-1, the molarity of glucose in blood is -×10-3M (Nearest integer):
[Given : Atomic mass of C=12,H=1, O=16 u]