Question

) determine the henry's law constant for ammonia in water at 25°c if an ammonia pressure of 0.022 atm produces a solution with a concentration of 1.3 m.
a.59 m/atm

b.0.029 m/atm

c.0.038 m/atm

d.35 m/atm

e.0.017 m/atm

Answer 1

Answer:

a. 59 m/atm

Explanation:

• To solve this problem, we must mention Henry's law.

• Henry's law states that at a constant temperature, the amount of a given gas dissolved in a given type and volume of liquid is directly proportional to the partial pressure of that gas in equilibrium with that liquid.

• It can be expressed as: C = KP,

C is the concentration of the solution (C = 1.3 M).

P is the partial pressure of the gas above the solution (P = 0.022 atm).

K is the Henry's law constant (K = ??? M/atm),

∵ C = KP.

∴ K = C/P = (1.3 M)/(0.022 atm) = 59.0 M/atm.