Essay
Laboverslag zuur base titratie
- Course
- Institution
Laboverslag van d zuur/base titratie 2
[Show more]
Seller
Follow
kobelimbourg
Content preview
Naam: Kobe LimbourgKlas: 1 BLT D
Datum: 15/11/2021
Verslag Labosessie 6: Zuur/Base titratie 6:
Doel:
1) Bepalen van de concentratie van de secundaire standaard (HCl) en de onbekende stof
(NaOH) door te stellen. De concentratie van HCl bepalen door minstens 5 keer te
titreren. Om de concentratie van NaOH te bepalen titreer minstens 3 keer. [1][3]
Principe:
De concentratie van de secundaire standaard (HCl) wordt bepaald door deze te stellen met
een primaire standaard (Na2CO3).
Na het stellen is de concentratie van HCl exact gekend en wordt deze concentratie gebruikt
om de concentratie van de onbekende (NaOH) te bepalen.
Om het equivalentiepunt te visualiseren wordt de indicator methyloranje xyleencyanol FF
gebruikt. (omslaggebied Ph= 3,8) [1][3]
Reacties:
fHCl= 1
fNa2CO3= 2
Figuur 1: Reactievergelijking natriumcarbonaat en waterstofchloride.
Figuur 2: reactievergelijking natriumwaterstofcarbonaat en waterstofchloride.
NaOH + HCl H2O + NaCl fHCl= 1
fNaOH= 2
Figuur 3: reactievergelijking titratie onbekende (NaOH) en HCl.
[1][3]
Benodigde reagentia:
, Primaire stof:
Na2CO3
m= C*V*M
m= 0,05000 mol/l * 0,2500l *106,0g/mol
m= 1,325g
Secundaire stof:
HCl
- 37g HCl 100g oplossing
- 12,078 mol 1000ml
0,10 mol
∗1,0 l
V1= l
12 mol/ l
C1= 12 mol/l
V2= 1,0l
C2= 0,10mol/l
V1= +- 8ml
In labo:
Na2CO3= 1,4229g afgewogen
[1][3][4]
Gebruikte toestellen:
Glaswerk:
Weegglaasje
Bekers (100ml)
Buret (50,00ml)
Erlenmeyer (250ml)
Maatkolf (250,0ml)
Trechters
Baxterfles (1l)
Buikpipet (20,00ml)
Toestellen:
Droogstoof “memmert” type U50 Analis
Analytische balans “Mettler Toledo XSR104”
[1][4]
Onbekenden:
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller kobelimbourg. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $5.88. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
53068 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now