Hi Albert, I'm glad to hear that! I was expecting to work with you on the acid-base problems some more, but I'm glad you "got it." I just opened an account at Aimoo to possibly carry on there after MSN Groups close in February. The URL is http://chemistrycorner.aimoo.com/. It's not like the groups here but it has what look like easy-to-use message board capabilities. I would like to be able to move the other pages I have here to the new site also, but I need to do some experimenting to see how well that will work. Thanks for the "break!" But of course you are alway welcome to post anything anytime. Steve |