Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Chem Test Ch 6

average atomic mass the weighted average of the masses of all the isotopes of an element
mole (mol) the number equal to the number of carbon atoms in exactly 12 grams of pure (12)C NUMBER FROM PERIODIC TABLE
1 mol of X 6.02 x 10^23 X
Avogadro's number (def) the number equal to the number of carbon atoms in exactly 12 grams of pure (12)C; the number of atoms in exactly one mol
Avogadro's number 6.02 x 10^23 atoms
mass percent the percent by mass of a component of a mixture or an element in a compound
STP standard temperature and pressure - conditions at which one mole of any gas will occupy 22.4 L of space
molar mass the mass (in grams) of 1 mol of the substance, obtained by summing the masses of each of the component atoms
empirical formula the formula of a compound expressing the smallest whole-number ratio of atoms in a compound - simplest form
molecular formula the actual formula of a compound giving the types of atoms and the numbers of each type of atom
hydrate a compound that contains a definite amount of water in its crystal structure
anhydrous substance containing no water
H2O of hydration water that has been evaporated
1 mol (L) 22.4 L
1 mol (molecules/particles/formula units/atoms) 6.02 x 10^23
Created by: meg.minor.15