A researcher transferred 20ml of benzoic acid in chloroform solution having the concentration (5%w/v) into a separatory funnel, then 20ml of water was added to the same separatory funnel, the mixture was shacked well. After few minutes the researcher took 10ml of the aqueous phase and perform an acid base titration using 0.02M NaOH, where 1 ml of 0.02M NaOH is equivalent to 0.00244gm of benzoic acid. At the end point the average volume of NaOH was 8ml. Answer the following questions: What is the weight of benzoic acid in 20ml chloroform before partitioning (gm)