Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
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. Your email address is only used to allow you to reset your password. See 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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
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

3U Chemistry

Quantities (moles)

TermDefinition
Account for... create a reason or explanation for...
stoichiometry using the quantitative relationships between the amounts of reactants used in a balanced chemical reaction and the amount of products formed
limiting reagent/reactant the compounds that are completely consumed during the rxn and that determine the amount of product that can form
percentage composition the mass of an element in a compound divided by the total mass of the compound, then multiplied by 100
empirical formula smallest ratio of atoms of each element that makes up the compound
molecular formula the actual number of atoms of each element that makes up the compound (eg. CO2 has one carbon and two oxygen atoms in each molecule)
excess reagents the reactants that are left over (unreacted; not used up)
theoretical yield If you have a balanced equation and know the masses of reactants used, you can calculate to predict how much product will be made...this is the theoretical yield
actual or empirical yield how much product you actually made and measured in an experiment...this can be compared with how much product you SHOULD have made theoretically
molar mass measured in g/mol; add up the masses contributed by each atom in a compound
Avogadro’s Constant the number of particles (or atoms, or molecules, or compounds...) of a substance in 1 mole (eg. 6.02 x 10 ^23 atoms in a mole)
quantitative relating to the measurement of quantity
qualitative relating to or involving comparisons based on qualities (characteristics we see, hear, touch, taste or smell)
demonstrate Show proof or evidence for something. Explain or show how something works
impure A pure element or compound contains only one substance, with no other substances mixed in. Impure materials may be mixtures of elements, mixtures of compounds, or mixtures of elements and compounds.
anhydrous (of a substance, especially a crystalline compound) containing no water.
Created by: jcepella
Popular Chemistry sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards