multiple coice...WTF?
okay, lookin at some anwsers, i gotta ask: 4 sulfuric acid log, isnt it b cause (H) is 0.1 times 2 cause is diprotic. that gives 0.2. then do -log(0.2) you get 1.
secondly, with ques 12, repeating improves accuracy! correct me if im wrong!