Concentration q (1 Viewer)

[hscwav2012]

Given Acetic Acid (CH₃COOH) has a density of 1.05g/mL and molecular weight of 60.052g.

What is its concentration?

 

[Alkanes]

Hmm I think its missing some info here. What is its given mass?

 

[barbernator]

Hmm I think its missing some info here. What is its given mass?

concentration, ppm in solution.

 

[Alkenes]

use density= mass/volume to find volume

then use n=m/MM to find the no of moles

then use c=n/v to find conc.

 

[Alkanes]

Please do it. My chemistry is so out of touch these days.

 

[Alkenes]

me??

Please do it. My chemistry is so out of touch these days.

 

[Alkanes]

use density= mass/volume to find volume

then use n=m/MM to find the no of moles

then use c=n/v to find conc.

Problem is how to find m in order to find the moles?

 

[Alkenes]

something is miising from question.....either the no of moles of acetic acid or the mass....re check mate

 

[RealiseNothing]

Problem is how to find m in order to find the moles?

"1.05g/mL"

Can we just assume that there is 1mL of solution, so the mass is 1.05g? Since we are working out the concentration, the exact amount doesn't matter, only the ratio?

 

[Alkenes]

+1

"1.05g/mL"

Can we just assume that there is 1mL of solution, so the mass is 1.05g? Since we are working out the concentration, the exact amount doesn't matter, only the ratio?

 

[Alkanes]

I'm not too sure actually. But it sounds right.

 

[RealiseNothing]

Assume there is 1mL, since the concentration is a ratio, not an amount. So:

m = 1.05g
M = 60.052g
V = 0.001L

Therefore:



Just put that into a calculator.

 

[iSplicer]

Hmm I think its missing some info here. What is its given mass?

Nope, it's all there. See above post by RealiseNothing.