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A company dissolves 'X' amount of CO2 at 298 K in 1 litre of water to prepare soda water X =____ × 10–3 g. (nearest integer) (Given: partial pressure of CO2 at 298 K= 0.835 bar. Henry's law constant for CO2 at 298 K = 1.67 kbar. Atomic mass of H,C and O is 1, 12 and 6 g mol–1 , respectively) |
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Answer» From Henry law P = KH X\(_{CO_2}\) 0.835 = 1.67 x 103 x 1.67 x 103x \(\cfrac{W_{CO_2/44}}{\frac{W_{CO_2}}{44}+\frac{1000}{18}}\) \(W_{CO_2}\) = 1.2228g = 1.222.8 x 10-3 g Or P = KHX\(_{CO_2}\) 0.835 = 1.67 x 103 x \(\frac{n_{CO_2}}{n_{CO_2}+n_{H_2O}}\) 0.835 = 1.67 x 103 x \(\cfrac{W_{CO_2}/44}{\frac{1000}{18}}\) W\(_{CO_2}\) = 1.222g = 1222.2 x 10-3 g |
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