Search found 4 matches

by Diane
Fri Nov 27, 2009 8:49 pm
Forum: Chemistry forum
Topic: temperature, pressure and volume
Replies: 1
Views: 2511

temperature, pressure and volume

If 18.0 g of O2 gas has a temperature of 350 K and a pressure of 550 mmHg, what is the volume?
by Diane
Sun Oct 25, 2009 7:47 pm
Forum: Chemistry forum
Topic: ionic and net ionic equations
Replies: 1
Views: 2768

ionic and net ionic equations

I need to write a balanced ionic equations and net ionic equations for 15 questions. Can you help start me off with these two. A precipitate of barium sulfate forms when aqeous solutions of barium nitrate and potassium sulfate are mixed. Zinc ion and hydrogen gas form when zinc metal reacts with aqu...
by Diane
Mon Oct 19, 2009 8:55 am
Forum: Chemistry forum
Topic: Grams and moles
Replies: 1
Views: 10186

Grams and moles

I am totally stumped. Where do I begin? Ethyl acetate reacts with H2 in the presence of a catalyst to yield ethyl alcohol: C4H8O2(l) + H2(g) --- C2H6O(l) How do I balance an equation for this reaction? Then I need to figures out how many moles of ethyl alcohol are produced by reaction of 1.5 mol of ...
by Diane
Mon Oct 19, 2009 8:18 am
Forum: Chemistry forum
Topic: Net ionic equations
Replies: 0
Views: 3173

Net ionic equations

Here are three samples of the 30 I need to complete.
I need to find net ionic equations for the below reactions:


2 AuCl3(aq) + 3 Sn(s) --- 3 SnCl2(aq) + 2 Au (s)

2 Nal(aq) + Br2(l) --- 2 NaBR(aq) + I2 (s)

2 AgNO3(ag) + Fe(s) --- Fe(NO3)2(aq) + 2 Ag(s)

Thank you.