In a glass containing 5kg of an 80% aqueous solution of viniger,3kg of water was added.find the concentration of the resulting solutuion of acetic acid?

1 Answer
Nam D.
Apr 17, 2018

#50%# vinegar

Explanation:

Well, before it was diluted with water, there was #5 \ "kg"*80%=4 \ "kg# of vinegar.

When three kilograms of water were added, the new mass of the whole aqueous solution is #5 \ "kg"+3 \ "kg"=8 \ "kg"#. Because no more vinegar was added, the mass stays the same.

And so, the new solution would be:

#(4color(red)cancelcolor(black)"kg""vinegar")/(8color(red)cancelcolor(black)"kg")*100%=50% \ "vinegar"#

Related questions
Impact of this question
321 views around the world
You can reuse this answer
Creative Commons License