What is the range on the pH scale? Where are acids on the pH scale? Where are bases on the pH scale? What are neutral substances? Where are neutral substances on the pH scale? What are buffers? Why do cells and living organisms need buffers? Some of these questions I have the answers too, I think, about two of them from online research, but I'm still unsure and need to double check my anwers. Thank you so much for your help. :)
2007-09-23 09:06:43 · 4 answers · asked by Anonymous in Education & Reference ➔ Homework Help
Here is a PH scale image with rate/scale factors
http://staff.jccc.net/pdecell/chemistry/phscale.gif
http://images.search.yahoo.com/search/images/view?back=http%3A%2F%2Fimages.search.yahoo.com%2Fsearch%2Fimages%3F_adv_prop%3Dimage%26fr%3Dks-ans%26va%3Dph%2Bscale%26sz%3Dall&w=483&h=828&imgurl=staff.jccc.net%2Fpdecell%2Fchemistry%2Fphscale.gif&rurl=http%3A%2F%2Fstaff.jccc.net%2Fpdecell%2Fchemistry%2Fphscale.html&size=12.1kB&name=phscale.gif&p=ph+scale&type=gif&no=2&tt=8,164&oid=51ca401183b4b9b2&ei=ISO-8859-1
http://teacherweb.com/NF/StPetersJuniorHigh/MrGWilliams/ph.bmp
***************NOTE****************
...put this into your search bar;
................. PH scale image.............
you will have more than you need
2007-09-23 09:15:27 · answer #1 · answered by LucySD 7 · 0⤊ 0⤋
The pH scale ranges from 0 to 14.
7 is neutral.
Anything below 7 is acidic. The lower the number, the stronger the acid. A pH of 2 is a much stronger acid than one with pH of 5.
Anything above 7 is basic (also called alkaline). The higher the number, the stronger the base. A 13 is much stronger than a 9.
A buffer is a substance that maintains the pH within a narrow limit. All living things need buffers to keep the pH from getting too high or too low. We require a pretty narrow pH range - too high or too low, and we die.
2007-09-23 09:14:32 · answer #2 · answered by lightcommastix 3 · 0⤊ 0⤋
The PH scale goe from 1 to 14 1 is the strongest acid and 14 is the strongest alkali
7 is neutral and it spirals from that look at www.wikipedia.org and type in what you are looking for it must come up!
2007-09-23 09:11:13 · answer #3 · answered by Anonymous · 0⤊ 0⤋
GAHHHH! I never had to learn that stuff in biology!
2007-09-23 09:15:07 · answer #4 · answered by Joshy 1 · 0⤊ 1⤋