7. By how many millivolts will the potential of the hydrogen electrode change relative to the calomel electrode (0.1 n NCE) if 20 cm3 of 0.2 n ammonia solution is added to 50 cm3 of 0.1 n HCl solution at a temperature of 20 C?

If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.