Henry's law constant, Kh = 6.4 x 10-4 M/atm
P = 0.75 atm
V = 1 lt
C= Kh P
C = 6.4 x 10-4 M/atm x 0.75 atm
C = 4.8 x 10-4 M
Molarity = No. of moles/Vol in lts = 4.8 x 10-4 M
No. of moles = 4.8 x 10-4 moles/lt x 1 lt = 4.8 x 10-4 moles
Molar mass of nitrogen = 28.02 g/mol
Mass of nitrogen = no. of moles x molar mass = 4.8 x 10-4 moles x 28.02 g/mol = 134.496 x 10-4 g = 1.3 x 10-2 g (Option D)
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