ChemVantage LogoWelcome to
ChemVantage - General Chemistry
An Open Education Resource
ChemVantage is a free resource for science education:
  • computer-graded quizzes
  • homework exercises
  • practice exams
View the ChemVantage video.

Please Sign In

ChemVantage uses third-party authentication; please select your online identity provider below.
If this is your first ChemVantage login, a free account will be created for you.


Try One Question

If 70 g of nitrogen gas combines with 80 g of oxygen to make 5 mol of nitric oxide (NO) gas, what mass of nitrogen would be required to make 5 mol of dinitrogen oxide (N2O) gas?
Enter the correct numerical value to 5.0% precision. Express scientific notation like 4.29E-15

© 2007-15 ChemVantage LLC. Creative Commons LicenseTerms and Conditions of UsePowered by Google App Engine