In order to find out the acid concentration you need to know how many moles are in a measured volume
in discussion Hidden / Per page discussions » Titration Related Calculations
Sandeep-
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
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!
If you are stuck with any aspect of this question, post your questions or problems here, and other students can help you out!