If I buy someone a case of beer

[Dave5N]

Ok.

What is the PH of a .03 M aqueous solution of HCL?

What is the % Carbon content of C7H10O2?

What type of atomic orbital is desognated by the 3 quantum numbers n=4, l=0, ml=0+

Why are the values of delta H and delta U essentially the same for reactions which do not involve gases?

0.54? I guessed at the dissacociation as 95% for a strong acid

Don't understand this. If you mean by mass, then is it 67?

4s0

>H=>U + P>V

P>V is negligible for solids and liquids. P is constant at atmospheric pressure for open reactions and >V is negligible. (.=delta - didn't know how to do sign.

It's been a long time so please be gentle with me!

 

[Dave5N]

Actually I think the first one is about 1.5 - I misread it as a 0.3M soln.

Fab Foodie or another proper scientist will be along in a minute.

 

[marinyork]

Sounds like a 4s to me.

(12x7)+(10x1) + (2x16)=84+10+32=126.
84/126*100=67%