Recent Forum Posts
From categories:
moles are the answer!
drbowkerdrbowker 07 May 2008 12:58
in discussion Hidden / Per page discussions »

In order to find out the acid concentration you need to know how many moles are in a measured volume

moles are the answer! by drbowkerdrbowker, 07 May 2008 12:58

your units of g/dm3 are correct for gram concentration
I cant see how you arrived at the calcium hydroxide concentration of 3.92.
Your calculation of the hydrochloric acid concentration is fine.
Remember that at the titration end point the number of moles of acid and alkali are equal ifthe stoichiometry of the neutralisation reaction is 1:1
Calcium is in group 2 so the equation for the neutralisation is………….
HINT: the values given for the mass of calcium hydroxide used to make up the solution are not correct because the "solution" was filtered i.e. some of the calcium hydroxide which was weighed out did not dissolve!
Hope this helps and thanks for your contribution to the site Dr Bowker

by drbowkerdrbowker, 14 Mar 2008 22:16

If you don't want to post on the main discussion page, you can also use the forum here! Create a new post, or reply to one of the same subject!

Forum Posts by drbowkerdrbowker, 09 Mar 2008 13:03
drbowkerdrbowker 09 Mar 2008 10:16
in discussion Hidden / Per page discussions »

If you are stuck with any aspect of this question, post your questions or problems here, and other students can help you out!

Help! by drbowkerdrbowker, 09 Mar 2008 10:16
Unless otherwise stated, the content of this page is licensed under Creative Commons Attribution-ShareAlike 3.0 License