Edexcel ial chemistry - unit 04 - may/june 2019 Watch

Saman_B9
Badges: 7
Rep:
?
#1
Report Thread starter 1 week ago
#1
I need help with this question(picture of question is in attachment). My answer seems to be wrong.
Please guide me on this question.
Attached files
0
reply
BobbJo
Badges: 12
Rep:
?
#2
Report 1 week ago
#2
n(NaOH) = 0.045 mol
n(HCl) = 5 x 10^-3 mol
n(CH3COOH) = 0.04 mol

CH3COOH + C2H5OH <-> CH3COOC2H5 + H2O
I 0.12, 0.22, 0, 0.278
E 0.04, 0.14, 0.08, 0.358
Kc = 5.1
Last edited by BobbJo; 1 week ago
0
reply
Saman_B9
Badges: 7
Rep:
?
#3
Report Thread starter 1 week ago
#3
(Original post by BobbJo)
n(NaOH) = 0.045 mol
n(HCl) = 5 x 10^-3 mol
n(CH3COOH) = 0.04 mol

CH3COOH + C2H5OH <-> CH3COOC2H5 + H2O
I 0.12, 0.22, 0, 0.278
E 0.04, 0.14, 0.08, 0.358
Kc = 5.1
Why did the number of moles of products increase by 0.08 mol? Could you explain it?
Was it because that n(CH3COOH)=n(NaOH)-n(HCl) ?
Last edited by Saman_B9; 1 week ago
0
reply
BobbJo
Badges: 12
Rep:
?
#4
Report 1 week ago
#4
(Original post by Saman_B9)
Why did the number of moles of products increase by 0.08 mol? Could you explain it?
Was it because that n(CH3COOH)=n(NaOH)-n(HCl) ?
0.08 mol CH3COOH reacted
from stoichiometry
1:1 ratio so 0.08 mol of each product is formed
0
reply
Saman_B9
Badges: 7
Rep:
?
#5
Report Thread starter 1 week ago
#5
(Original post by BobbJo)
0.08 mol CH3COOH reacted
from stoichiometry
1:1 ratio so 0.08 mol of each product is formed
Yeah, now I understood it
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

University open days

  • University of Bath
    Undergraduate Virtual Open Day Undergraduate
    Sat, 23 Feb '19
  • Ravensbourne University London
    School of Design, School of Media Further education
    Sat, 23 Feb '19
  • Leeds Trinity University
    PGCE Open Day Further education
    Sat, 23 Feb '19

Do you have a food intolerance or allergy?

Yes - a food intolerance (42)
11.93%
Yes - a food allergy (39)
11.08%
Yes - an autoimmune disorder (i.e coeliac, colitis) (11)
3.13%
Yes - I have an intolerance and allergy (9)
2.56%
No (251)
71.31%

Watched Threads

View All