What pressure of carbon dioxide is required to keep the co2 concentration in a bottle of club soda at 0.12 mol/l at 25 c? the henry's law constant of co2 in water at 25 c is 3.4 × 10-2 (mol/l)/atm?

According to Henry's Law, at a given temperature the concentration (C) of a gas dissolved in a liquid is proportional to the partial pressure (p) of the gas above the liquid. i.e

C = k*P(1)

where k = Henry's constant

It is given that:

Concentration C of CO2 = 0.12 mol/L

k for CO2 at 25 C = 3.4 * 10^-2 mole/L.atm

Based on eq(1)

p(CO2) = C/k = 0.12 molL-1/3.4 *10^-2 molL-1atm-1

p(CO2) = 3.5 atm

the answer is b & c i believe : )

what is the average time it took the car to travel 0.25 meters?

⇒ 2.23 seconds

what is the average time it took the car to travel 0.50 meters?

⇒ 3.13 seconds