suppose you prepare a 500 ml of .10 M solution aqueous solution of some salt and let it sit out uncovered and some water evaporates. What happens to the concentration of salt?

Question

nali · Answer

@dpaInc can u help me wiht this question plz

nali · Answer

i think the answer is the concentration increases becuase the water molecules are less now

amtran_bus · Answer

It stays the same...all you do is decrease the amount of water, however the same amount of salt stays.

nali · Answer

yeah but the concenetration will increase

nali · Answer

@AmTran_Bus

ookawaiioo · Answer

The concentration will increase!

Lets do the opposite. What if you added more water to the salt? You diluted the concentration aka decreased concentration.

ookawaiioo · Answer

-Credentials- Imma chemistry major in college

nali · Answer

so the concentration will increase right?
@oOKawaiiOo

ookawaiioo · Answer

Yes. Lets give a real life example. 
Pour 1 tablespoon of salt into 1 cup of water. 
Pour 1 tablespoon of salt into 20 cups of water.

Which one taste more salty?

nali · Answer

the first one 

i get it thanku

ookawaiioo · Answer

Yes, because it is more concentrated lol.

amtran_bus · Answer

Right, because the ratio of water to salt.
Water decreases, so salt increases.  But the amount of salt stays the same no matter what the water does.