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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: Heebeejibees on May 30, 2018, 09:25:55 PM

Title: Concentration problem
Post by: Heebeejibees on May 30, 2018, 09:25:55 PM

I am stumped on this homework problem. SOS please
A kitchen uses acetic acid (CH3OOH at 18M) to dilute it to produce vinegar at 5% m/v acetic acid concentration. What is the concentration in mil/L?

Title: Re: Concentration problem
Post by: Borek on May 31, 2018, 04:15:27 AM

You have to show your attempts at solving the problem to receive help, this is a forum policy.

I am not sure I understand the question though (not necessarily your fault):

Quote from: Heebeejibees on May 30, 2018, 09:25:55 PM

What is the concentration in mil/L?

Concentration of what?

And what is mil?

Title: Re: Concentration problem
Post by: Corribus on May 31, 2018, 08:56:15 AM

Probably typo, mol/L. And I think the question is just asking to convert 5% m/v 18M acetic acid in water to mol/L, no?

Title: Re: Concentration problem
Post by: Heebeejibees on May 31, 2018, 09:16:26 AM

Yes it should be mol/L and that is what it’s asking

Title: Re: Concentration problem
Post by: Borek on May 31, 2018, 09:46:41 AM

OK, being before coffee didn't help, I thought you were asked to convert concentration to some strange unit, but it wasn't clear whether you are asked to convert 18 M or 5% m/v.

Quote from: Heebeejibees on May 31, 2018, 09:16:26 AM

Yes it should be mol/L and that is what it’s asking

You have still not shown what you have tried.

5% m/v - what does it mean?

How much acetic acid in 1 L of 5% m/v solution?