6. Calculate the molarity of 9.8% (w/W) solution of
H,SO, if the density of the solution is 1.02 g mL1.
(Molar mass of H,SO, = 98g mol)
(2/5, Foreign 2014) (Ev
7. Differentiate between molarity and molality of a
solution. How can we change molality value of a
solution into molarity value? (Delhi 2014C) (An
SA II (3 marks)
8. A
solution of glucose (molar mass = 180g mol) in
water is labelled as 10% (by mass). What would be
the molality and molarity of the solution?
(Density of solution = 1.2 g mL-)
(NCERT,3/5, Al2014)
,12. Why aquatic animals are more comfortable in cold
water than in warm water? (1/3, 2018) (Ap
13. Gas (A) is more soluble in water than gas (B) at the
same temperature. Which one of the two gases will
have the higher value of Ku (Henry's constant) and
why?
(1/2, Al 2016)
, 17. State Henry's law and mention two of its important
applications. (2020 C) (U
18. Give reasons for the following.
(a) Aquatic species are more comfortable in cold
water than inwarm water.
(b) At higher altitudes people suffer from anoxia
resulting ininability to think. (AI2019) (Ap
H,SO, if the density of the solution is 1.02 g mL1.
(Molar mass of H,SO, = 98g mol)
(2/5, Foreign 2014) (Ev
7. Differentiate between molarity and molality of a
solution. How can we change molality value of a
solution into molarity value? (Delhi 2014C) (An
SA II (3 marks)
8. A
solution of glucose (molar mass = 180g mol) in
water is labelled as 10% (by mass). What would be
the molality and molarity of the solution?
(Density of solution = 1.2 g mL-)
(NCERT,3/5, Al2014)
,12. Why aquatic animals are more comfortable in cold
water than in warm water? (1/3, 2018) (Ap
13. Gas (A) is more soluble in water than gas (B) at the
same temperature. Which one of the two gases will
have the higher value of Ku (Henry's constant) and
why?
(1/2, Al 2016)
, 17. State Henry's law and mention two of its important
applications. (2020 C) (U
18. Give reasons for the following.
(a) Aquatic species are more comfortable in cold
water than inwarm water.
(b) At higher altitudes people suffer from anoxia
resulting ininability to think. (AI2019) (Ap
