Oxygen: atomic number 8

Electrolysis of water

I have a few questions for the electrolysis of water.

If 4 Litres of water is used and lets say for example a 9 volt battery is used. How much hydrogen and oxygen will be produced per second in terms of molecules?

Also if salt is added to the water to speed up the process, how much salt would be needed and would the products from the electrolysis change?

Please answer
Thank you

error in units

The units of resistivity don't come out right.

10^-8 Ohm * m
m Ohm * cm

the 'm' should be a 'mu', but unfortunately they both look the same in the latin alphabet.


isotopic abundance

Oxygen(atomic mass 15.9994 amu) has 3 isotopes with masses 15.9949 amu, 16.9993 amu, and 17.9992 amu. The abundance of the last isotope is .204%. Estimate the abundance of the other two isotopes.

I just need to know how to solve it bcuz im confused! thanks

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