chem

Chemistry and homework help forum.

Organic Chemistry, Analytical Chemistry, Biochemistry, Physical Chemistry, Computational Chemistry, Theoretical Chemistry, High School Chemistry, Colledge Chemistry and University Chemistry Forum.

Share your chemistry ideas, discuss chemical problems, ask for help with scientific chemistry questions, inspire others by your chemistry vision!

Please feel free to start a scientific chemistry discussion here!

Discuss chemistry homework problems with experts!

Ask for help with chemical questions and help others with your chemistry knowledge!

Moderators: Xen, expert, ChenBeier

Post Reply
JamiePena
Full Member
Full Member
Posts: 15
Joined: Tue Nov 06, 2007 12:31 pm

chem

Post by JamiePena »

How many grams of oxygen are in 4.15 moles V2O5?

Please explain how to get this.
Top
User avatar
Xen
Sr. Staff Member
Sr. Staff Member
Posts: 142
Joined: Thu May 25, 2006 9:13 am

Re: chem

Post by Xen »

JamiePena wrote:How many grams of oxygen are in 4.15 moles V2O5?

Please explain how to get this.
1) Compute the umber of moles of oxygen:
n(O) = n(V2O5) * 5

2) Compute mass of oxigen:
m(O) = molar mass of oxygen * n(O)

For molar mass of oxygen use: http://www.webqc.org/mmcalc.php
Top
Post Reply

Return to “Chemistry forum”