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

Chapter 13 Chemistry

QuestionAnswer
The Four Colligative Properties vapor pressure, boiling point, freezing point, osmosis
The # Of Vapor Particles In A Pure Solvent Is... 8
The # Of Vapor Particles In A Solution With A Non-Volatile Solute Is... 6
The # Of Vapor Particles In A Solution With A Volatile Solute Is... 5
In A Non-Volatile Solution, The Vapor Phase Consists Of... only solvent
In A Volatile Solution, The Vapor Phase Consists Of... solvent & solute
In A Solution, There Are Less Solvent Particles In The Vapor Phase Because... the # of surface particles decreases, reducing the # available to evaporate
Non-Volatile Solute Equation Psoln = (Psolv)(Xsolv)
Mole Fraction Equation X = mole component / moles total
Volatile Solute Equation Psoln = (Pcomp1)(Xcomp1) + (Pcomp2)(Xcomp2) + ...
Mole Fraction Of Vapor Component Equation Xcomp1 vapor = Pcomp1 vapor / Psoln
How & Why The BP Changes When A Solute Is Added decreases the vapor pressure of the solution, so it takes more KE to boil (VPsoln=Patm)
The Atmospheric Pressure Is Equal To... the vapor pressure of a solution
Occurrences During Freezing the substance will form an orderly arrangement & H-Bonds form
How & Why The FP Changes When A Solute Is Added solute makes the IMFA attraction more difficult to form, so it takes a lower temperature to freeze
BP Equation Δt=mki (k is the BP constant of the solvent)
FP Equation Δt=mki (k is the FP constant of the solvent)
In BP & FP Equations, 'k' is... the BP or FP constant solvent
In BP & FP Equations, 'Δt' is... the change in BP or FP
In BP & FP Equations, 'm' is... molality (moles solute/kg solvent)
In BP & FP Equations, 'i' is... Van't Hoff Factor = dissociation factor = # solute particles in soln
Ionization For Non-Ionizing Solutes 1 organic/molecular - non-metals
Ionization For Ionizing Solutes i = # of ions in solution - soluble ionic salts
Ion Pairing for a brief moment, ions pair & reduce the # of free ions in a solution
To Calculate The Ionization Factor Of Pairing Ions... multiply the oxidation numbers and take the absolute value ((ex: NaCl -> ∣(1)(-1)∣= 1))
The Higher The Product Of The Oxidation Numbers... the higher the ion pairing, higher the attraction, higher the charges
How Ion Pairing Affects BP/FP ion pairing will decrease 'i' value & Δt will be smaller
Steps To Calculate Molar Mass Of An Unknown Solute 1) calculate Δt or change in BP/FP -- 2) find k solvent & i solute -- 3) plug & solve -- 4) DA from grams to moles -- 5) g/mol
Steps To Calculate Grams Of Solute Needed 1) calculate Δt or change in BP/FP -- 2) find k solvent & i solute -- 3) plug & solve -- 4) DA from grams to moles -- 5) g solute
Osmotic Pressure the external pressure that needs to be exerted to stop osmosis
Osmosis "the spontaneous net movement or diffusion of solvent molecules through a selectively-permeable membrane"
Semi-Permeable the solvent molecules can cross, but solute cannot
The NET Movement Of A Solvent Is... towards the higher solute concentration
\The NET Movement Of A Solvent Stops When... it does not stop
Equilibrium Of NET Movement # leaving = # entering
When Equilibrium Is Reached, The Solvent Side Of The Tube Will Be... higher
Osmotic Pressure Equation P=n/v x RT (P & capital π equal MRT)
Created by: abievans
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