Question -
Answer -
It is given that:
KH = 1.67 × 108 Pa
= 2.5 atm = 2.5 × 1.01325 ×105 Pa
= 2.533125 × 105 Pa
According to Henry’s law:
= 0.00152
We can write, 
[Since, 
is negligible as compared to
]
In 500 mL of soda water, thevolume of water = 500 mL
[Neglecting the amount of sodapresent]
We can write:
500 mL of water = 500 g of water
= 27.78 mol of water
Now,
Hence, quantity of CO2 in500 mL of soda water = (0.042 × 44)g
= 1.848 g