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Solutions - Intext Questions and Answer - class 12 chemistry


Solution of NCERT In Text Questions-2.7

Question - 2.7 - Henry❜s law constant for CO2 in water is 1.67x108 Pa at 298 K. Calculate the quantity of CO2 in 500 mL of soda water when packed under 2.5 atm CO 2 pressure at 298 K.

Solution:

Given,

Henry❜s Law constant Solutions class 12 chemistry - NCERT In Text Solution36

Solutions class 12 chemistry - NCERT In Text Solution37

Molar mass of Solutions class 12 chemistry - NCERT In Text Solution38

Now, As per Henry❜s Law Solutions class 12 chemistry - NCERT In Text Solution39

Solutions class 12 chemistry - NCERT In Text Solution40
Solutions class 12 chemistry - NCERT In Text Solution41

Now, number of mole of water present in 500 mL of soda water

Molar mass of water (H 2O) = 1 x 2 + 16 = 18

Mass of water = 500 mL = 500 g (since density of water = 1 g m3)

Therefore, number of moles of water (H 2O) Solutions class 12 chemistry - NCERT In Text Solution42

Solutions class 12 chemistry - NCERT In Text Solution43