The molality of a solution containing 1.8g of glucose dissolved in 250 g of water is _____________

(a)

0.2 M

(b)

0.01 M

(c)

0.02 M

(d)

0.04 M

Which of the following concentration terms is/are independent of temperature _____________

(a)

molality

(b)

molarity

(c)

mole fraction

(d)

(a) and (c)

Stomach acid, a dilute solution of HCl can be neutralised by reaction with Aluminium hydroxide
Al (OH)₃ + 3HCl (aq) → AlCl₃ + 3 H₂O
How many millilitres of 0.1 M Al(OH)₃ solution are needed to neutralise 21 mL of 0.1 M HCl ?

(a)

14 mL

(b)

7 mL

(c)

21 mL

(d)

none of these

The Henry's law constant for the solubility of Nitrogen gas in water at 350 K is 8 x 10⁴ atm. The mole fraction of nitrogen in air is 0.5. The number of moles of Nitrogen from air dissolved in 10 moles of water at 350K and 4 atm pressure is ____________

(a)

4 x 10^-4

(b)

4 x 10⁴

(c)

2 x 10^-2

(d)

2.5 x 10^-4

Osometic pressure (p) of a solution is given by the relation ____________

(a)

 = nRT

(b)

V = nRT

(c)

\(\pi\)RT = n

(d)

none of these