consinder an experiment in which water was electrolysed. theresulting H 2 and O

Question

consinder an experiment in which water was electrolysed. theresulting H2 and O2 are collectedseparately at 25oC and 1atm pressure, and the volume ofO2 collected is 158.9 ml. what volume of H2is collected?. the equation for electrolysis. (Gas constant, R= 0.082L atm mol-K-) consinder an experiment in which water was electrolysed. theresulting H2 and O2 are collectedseparately at 25oC and 1atm pressure, and the volume ofO2 collected is 158.9 ml. what volume of H2is collected?. the equation for electrolysis. (Gas constant, R= 0.082L atm mol-K-)

Explanation / Answer

Equation for electrolysis is          H2O   ..................>H2 + 1/2 O2 moles of O2 produced   = (pV)/RT                                        =(1atm*0.1589L)/(0.0820L atm mol-1 K-1 *298K)                                       = 0.0065mol moles of H2 = 2*moles of O2                        = 2*0.0065mol                        = 0.0130mol Volume of H2 = nRT/p                          =(0.0130mol*0.0820L atm mol-1K-1*298K)/1atm                         =0.317668L                        = 317.67mL Volume of H2 = nRT/p                          =(0.0130mol*0.0820L atm mol-1K-1*298K)/1atm                         =0.317668L                        = 317.67mL

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