Homework Help

what is the method and apparatus of a titration between HCl and Na2CO3. you are given...

user profile pic

tasmiya786 | Student, Grade 11 | eNoter

Posted May 10, 2012 at 5:10 PM via web

dislike 3 like

what is the method and apparatus of a titration between HCl and Na2CO3. you are given 25cm cubed of standard solution Na2CO3 of concentration 0.05mol.dm cubed.

Tagged with chemistry, science, titration

3 Answers | Add Yours

user profile pic

sanjeetmanna | College Teacher | (Level 3) Assistant Educator

Posted July 3, 2012 at 11:19 PM (Answer #1)

dislike 1 like

For titration we will require

burette

conical flask

measuring cylinder

Ph indicator

Method

Acid-Base Tititration to measure the unknown concentration.

Used to find the molarity of a solution of an acid or a base.
in titration

one solution is taken in burette usually we take base

Another solution is taken in beaker it will be acid with a indicator

Indicator will change the color of the acid.

Now run base drop by drop into the beaker and keep stirring the beaker the solution will become colorless at one point that is called the end point note the volume run down in the burette. Repeat the same till you get two consecutive and the use the volume as V1 which will have some concentration let it be M1.

The volume of the solution taken the beaker is V2 and we have to find the unknown concentration of the soilution in the beaker That is M2.

Formula = M1 * V1 = M2 * V2

M2 = (M1 * V1)/V2

user profile pic

just-s | Student , Grade 11 | Valedictorian

Posted May 24, 2012 at 8:06 PM (Answer #2)

dislike 0 like

Apparatus: Goggles, Bench mat, 100cm3 beaker, 250cm3 beaker, 250cm3 conical flask, 25cm3 bulb pipette, Pipette filler, Burette, Burette stand ,and holder Plastic filter funnel, White tile, Teat pipette. Access to: your standard sodium carbonate solution dilute hydrochloric acid to standardise phenolphthalein indicator solution methyl orange indicator solution .

user profile pic

chaobas | College Teacher | Valedictorian

Posted June 12, 2012 at 11:57 PM (Answer #3)

dislike 0 like

The method used here is acid based titration where we titrate a unkon concentration of base with acid to find the concentration of unkonwn acid.

 

The apparatus are : Burette(25/50mL) beaker(10mL) and a indicator (Phenolphthalein)

Join to answer this question

Join a community of thousands of dedicated teachers and students.

Join eNotes