The solubility of nitrogen in water is mol/L at when the pressure above water is atm. Calculate the Henry’s law constant for in units of for Henry’s law in the form , where is the gas concentration in mol/L. Calculate the solubility of in water when the partial pressure of nitrogen above water is atm at 0°C.

The solubility of nitrogen in water is 8.21 x 10 -4 mol/L at 0°C when the N2 pressure above water is 0.790 atm. Calculate the Henry’s law constant for N2 in units of mol/L • atm for Henry’s law in the form C = kP, where C is the gas concentration in mol/L. Calculate the solubility of N2 in water when the partial pressure of nitrogen above water is 1.10 atm at 0°C.

The answer to the question is

1.143 × 10⁻³ mol/L

Explanation:

Henry's law states that the concentration of a gas in a solution is directly proportional to the partial pressure of the same gas existing above the solution at constant temperature

or c ∝ P which gives c = k × P

where c = concentration

k = constant of proportionality

P = Partial pressure of the same gas above the solution

The solubility of nitrogen = 8.21×10⁻⁴ M/L

The pressure above water = 0.790 atm

Therefore from C = kP

8.21×10⁻⁴ M/L = k×0.790 atm

k = 1.03924×10⁻³mol/(L·atm)

Hence when partial pressure = 1.10 atm we have

C = k×P = 1.03924×10⁻³mol/(L·atm) × 1.10 atm = 1.143×10⁻³ mol/L

in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

explanation:

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8