[aeacfm]

my friend told me some thing i looked for it but i didnt find useful thing, he said that :

electron donor has more electrons so if you measure the voltage by pH electrode it will give you -ve potential , electron accepetors are electron dificient so using ph electrode it will give the +ve potential

i did that i measured the mv for acids it give +ve , for bases it gives -ve !!! so is that right or just accident or it will depend ?