Volume of Gasses Obtained by Electrolysis of Salt Solution

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To calculate the volume of gases produced by the electrolysis of a NaNO3 solution with a mass fraction change from 40% to 60%, the initial amount of the solution is crucial. Without this information, it is impossible to determine the exact volume of gas produced. A suggestion is to assume a starting point of 1 kg of the mixture for calculations. The textbook states the total gas volume as 169.2 dm3, but this cannot be verified with the provided data. Accurate calculations require more specific details about the initial solution.
CroSinus
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Please post this type of questions in HW section using the template and showing your work.
Hello everybody!How can I calculate the volume of gasses produced by electrolysis of an aqueous solution of NaNO3 if the mass fraction of the salt changed from 40% to 60% (before electrolysis the mass fraction of the salt was 40% and after electrolysis it changed to 60%)? Pressure and temperature are 20 ºC and 99,8 kPa.Can you help me with my problem, please!

CroSinus
 
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Not enough information to solve the problem - you need to know what was the initial amount of the solution.

You can at best give the answer in terms of "volume of gas produced per kg of electrolyzed mixture".

Try to assume you started with 1 kg of mixture - does it help?
 
Thank you very much Borek for trying to help me.
The answer from my textbook says: V(O2) + V(H2) = 169,2 dm3
 
As I said - no way of getting this answer from the information you gave in this thread.
 

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