Thursday, July 9, 2009

Air is a mixture of gases that is about 78.0% by volume. When air is at standard pressure and 25.0deg C......

Air is a mixture of gases that is about 78.0% N_2 by volume. When air is at standard pressure and 25.0 deg C , the component will dissolve in water with a solubility of 4.88 * 10^-4 M. What is the value of Henry's law constant (k) for N_2 under these conditions?

Air is a mixture of gases that is about 78.0% by volume. When air is at standard pressure and 25.0deg C......
henry's law





caq =k*P


the partial pressure of N2 =total pressure *x


x molal fraction of gas here x=78%=0.78atm





so k= 4.88*10^-4/0.78 =6.256*10^-4 by atmosphere

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