i have a question regarding the concentrations. I have a sample i dilute it mass-maas. 30grams of sample+600grams of DW. Then i find the concentration of acetic acid present. It is 0.04M. Now how much is the concentration of acetic acid in original sample. As i did 1:20 dilution. And i remember we have to multiply this so in original solution acetic acid concentration is= 0.04M*20=> 0.8M.
Am i right? Thanks for the help.