Volumetic Analysis - calculate concentration

[Mr Mooch]

Please Help! Volumetic Analysis - calculate concentration

Dear Physics Forum Fiends,

I was wondering if anyone out there who needs to earn some extra points to get into heaven perhaps or is simply feeling extraordinarily generous, might like to give this problem a go?
I am woefully lost in chemistry!

Homework Statement

A 25.00mL sample of 'Cloudy Ammonia' was diluted to a volume of 250.00mL in a volumetric flask. A 25.00mL aliquot of the diluted solution was titrated with 0.200 M hydrochloric acid. To reach the end point, 26.75 mL of acid was required.
Calculate the concentration of ammonia in the cloudy ammonia.

Homework Equations

NH3 + HCl > NH4Cl

 

[Simon Bridge]

Welcome to PF:
This is an acid-base titration calculation ... from the look of it, this is part of a course so you should find examples in your course notes. Failing that - there are many many online.

Give the calculation an honest try and we'll help you out where you get stuck.

 

[Mr Mooch]

Hello,

Thank you for your reply. I just got some help from somewhere else which has helped me to understand what's going on a lot better.

Thanks,

 

[Mr Mooch]

...but I really appreciate your offer of assistance!

Best wishes,

 

[Simon Bridge]

No worries.
In case someone else googles to this page with a similar question, here's a link to an explanation.