Hello everyone, this is a question I've asked at another chemistry forum, and has been bothering me for awhile . http://www.chemicalforums.com/index.php?topic=34742.0" And ... the only only reason I'm posting it here aswell,is causeI have my chem exam on Thursday(the day after tomorrow) and...I'm the kinda idiot(also a blabbermouth) who can't skip a problem unless I'm absolutely sure I've understood it,so... I would really appreciate it if I could find a solution to this before my exams... And oh...I know I ask alot of stupid questions ,so if you think this is one of those,just tell me & i won't bother you guys. (well,i might pester your'll with other questions,but no more pestering after my exams,for atleast a week,promise. :) ) thx.