[surf@cekemist]

I just got done performing a back titration in order to determine the number of carboxylic acid groups on the surface of my substrate. So knowing the volume and concentration of the titrant (also having performed a titration on a blank) and the surface area of my substrate with carboxylic acid groups on the surface, how do I go about computing the number of carboxylic groups per surface area? Also,

Any help would be much appreciated. Thanks! Looking forward to everyone's suggestions and comments.

[Borek]

Calculate number of moles of -COOH groups, convert to number of -COOH groups, divide by surface.

[surf@cekemist]

Thank you Borek! I appreciate it.