Help! Eriochrome Black T indicator preparation calculations

Watch
Ray.Inspiration
Badges: 2
Rep:
?
#1
Report Thread starter 6 years ago
#1
I am unaware of the calculations to make 0.5% EBT indicator in 95% ethanol. Could anyone give me some hints with what the calcuations are about?
Thanks in advance..
0
reply
Kemmist
Badges: 3
Rep:
?
#2
Report 6 years ago
#2
Let's say you were to make 100ml of solution.
How much Ethanol would you need for it to be 95% ethanol? (this is assuming % by volume or is it by weight?)
0
reply
Ray.Inspiration
Badges: 2
Rep:
?
#3
Report Thread starter 6 years ago
#3
(Original post by Kemmist)
Let's say you were to make 100ml of solution.
How much Ethanol would you need for it to be 95% ethanol? (this is assuming % by volume or is it by weight?)
Yes I will be making 100ml and the % is in terms of volume
0
reply
Kemmist
Badges: 3
Rep:
?
#4
Report 6 years ago
#4
So, what is 95% of 100ml?
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 (61)
29.33%
Yes, there is a uni that I prefer and I'll fit in better (15)
7.21%
No I am happy with my choice (116)
55.77%
I'm using Clearing when I have my exam results (16)
7.69%

Watched Threads

View All
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