Determination of the Acid content of Vinegar - CHE1503 Experiment
In this video, I’ll show you the lab experiment on how to determine the acid content of the vinegar.
Vinegar is essentially an aqueous solution of acetic acid, which is a carboxylic acid. The acid
has one ionizable proton, the hydrogen from the –OH group, and it is a weak acid, with
pKa value of 1.75 x 10 -5 at 25 °C. The total acid content of vinegar can be determined by
titration with a standard base such as sodium hydroxide, using phenolphthalein as the
indicator. The principal acidic constituent is acetic acid. Although other acids are also
present, the results are reported in terms of acetic acid, which normally ranges between
4 and 6% (w/v).
The equation for the titration reaction is:
CH3COOH + NaOH → CH3COONa + H2O
The molecular mass of acetic acid is 60.05 g mol-1. Since the information on the vinegar
bottle label gives the concentration of acetic acid in w/v %, you have to convert a
concentration of acetic acid in mol /L to that in mass of acetic acid per 100 mL of vinegar.
BE MY FRIEND:
📸Add me on Instagram: https://www.instagram.com/p/CdNgDxMu6sO/?igshid=YmMyMTA2M2Y=
🐦Add me on Twitter: https://twitter.com/Sciencera12?t=SevFfcBpV_rgEz78UH1fLQ&s=09
📕Add me on Facebook: https://www.facebook.com/Sciencera.LearnToThink/
ABOUT MY CHANNEL:
Hi! I’m Rubbia Khalid. On my channel, you will find Educational Vedios. I love sharing UNISA modules notes. for example - anatomy and physiology / biochemistry/ immunology etc.] with you guys as I experience them myself.
Subscribe here to see more of my videos in your feed!
http://www.youtube.com/channel/UCoAm4bo_f46ZUZrW_yYM7bg?sub_confirmation=1
Feel free to add me on Instagram/Facebook/Snapchat/Tiktok: @sciencera.learntothink
👇👇👇👇👇👇👇👇👇👇👇👇👇👇👇👇👇
#PLEASE #LIKE #COMMENT #SHARE AND #SUBSCRIBE!!
FOR PDF #NOTES PLEASE CONTACT: +27 746520579
BUY NOTES ON:
https://www.stuvia.com/user/sciencera
JOIN US ON TELEGRAM
https:/t.me/sciencera
00:00 Introduction
00:20 Purpose
00:37 Reagents
00:47 Procedure
02:25 Lab Report
04:29 Calculations on Lab Report
-
13:03
JoBlo Originals
23 hours agoSucker Punch - NOT As Bad As You Thought?
14.2K9 -
10:38
Tactical Advisor
1 day agoModern Lever Actions Overview
22.1K5 -
29:11
MYLUNCHBREAK CHANNEL PAGE
18 hours agoExposing Chicago's Tunnel System?
15.8K50 -
3:44:34
UFC - Ultimate Fighting Championship
3 days agoUFC 303: Pereira vs Prochazka 2 | June 29
23.8K10 -
35:01
Candace Owens
14 hours agoThe Conversation Every Married Couple Has
68.7K83 -
35:00
My Self Reliance
15 hours agoHand-Built Stone Chicken Coop: Ultimate DIY Project for My Permaculture Homestead
54.9K83 -
1:43:48
Bright Insight
18 hours agoWhat You Must Know about Graham Hancock/Flint Dibble Debate (w/ @DeDunking)
77.8K83 -
1:21:47
LFA TV
1 day agoBIDEN DIES AS TRUMP THRIVES Ft. Jeremy Herrell & Liz Willis | LAST CALL 6.29.24 8PM EST
116K75 -
28:53
Stephen Gardner
19 hours ago🔴JUST NOW: HUGE Trump WIN I didn’t expect | White House MELTDOWN over Joe’s health scare
95.8K548 -
1:46:49
Jewels Jones Live ®
1 day agoSCOTT PRESLER - THE PERSISTENCE | A Political Rendezvous - Ep. 82
111K47