z20010318
Badges: 12
Rep:
?
#1
Report Thread starter 2 years ago
#1
Hey guys,

Got this 6 Mark question from my teacher could someone please help me and explain how to do it because I can’t get my head around it!

Q: Describe how you would make 250cm^3 of a solution of butanedioc acid with am accurately known concentration of approx. 0.0500 mol dm^3. Butanedioic acid is soluble in sufficiently soluble in water to get this concentration?
Molar Mass of Butanedioic acid is 118g mol-1

Can anyone tell me the answer please?

Thanks for your time guys I appreciate it a lot
0
reply
charco
Badges: 17
Rep:
?
#2
Report 2 years ago
#2
(Original post by z20010318)
Hey guys,

Got this 6 Mark question from my teacher could someone please help me and explain how to do it because I can’t get my head around it!

Q: Describe how you would make 250cm^3 of a solution of butanedioc acid with am accurately known concentration of approx. 0.0500 mol dm^3. Butanedioic acid is soluble in sufficiently soluble in water to get this concentration?
Molar Mass of Butanedioic acid is 118g mol-1

Can anyone tell me the answer please?

Thanks for your time guys I appreciate it a lot
calculate moles of acid needed from molarity x volume (litres)
weigh it out
add water to dissolve
make up to 250ml in a volumetric flask
0
reply
mathieua0001
Badges: 4
Rep:
?
#3
Report 1 month ago
#3
Hello there,
I know I'm 2 years late but I just got set this same question as homework and I just wanted to confirm my calculations were correct:

250÷1000=0.25 mol dm-3
0.050 X 118=5.9 g dm-3

5.9 X 0.25=1.475 grams

Dissolve 1.475 grams of Butanedioic acid in 250cm3 of water.
(Original post by z20010318)
Hey guys,

Got this 6 Mark question from my teacher could someone please help me and explain how to do it because I can’t get my head around it!

Q: Describe how you would make 250cm^3 of a solution of butanedioc acid with am accurately known concentration of approx. 0.0500 mol dm^3. Butanedioic acid is soluble in sufficiently soluble in water to get this concentration?
Molar Mass of Butanedioic acid is 118g mol-1

Can anyone tell me the answer please?

Thanks for your time guys I appreciate it a lot
Last edited by mathieua0001; 1 month ago
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Back
to top
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

Are you tempted to change your firm university choice on A-level results day?

Yes, I'll try and go to a uni higher up the league tables (38)
28.36%
Yes, there is a uni that I prefer and I'll fit in better (12)
8.96%
No I am happy with my choice (74)
55.22%
I'm using Clearing when I have my exam results (10)
7.46%

Watched Threads

View All