Henry's law constant for in water is 1.6 × 10^8 Pa at 298 K. The quantity of in 500 g of soda water when packed under 3.2 bar pressure at 298 K, is

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Henry's law constant for $CO_2$ in water is 1.6 × 10^8 Pa at 298 K. The quantity of $CO_2$ in 500 g of soda water when packed under 3.2 bar pressure at 298 K, is

Prashant Kotian · Accepted Answer

Correct answer: A. x_CO2 = p/KH = (3.2*10^5)/(1.6*10^8) = 2.0*10^-3. Moles of water = 500/18 = 27.78 mol. n_CO2 = 2.0*10^-3 * 27.78 = 0.05556 mol. Mass = 0.05556 * 44 = 2.44 g.

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