Chem 105
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What is the common ion effect? | show 🗑
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| Eg of common ion effect? | show 🗑
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| show | solutions where pH can stay somewhat constant even if small amounts of strong acid or base are added. They feature common ion effect
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| What makes up a buffer? | show 🗑
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| show | yes
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| show | yes
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| Is HCO3-/CO3(2-) a buffer? | show 🗑
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| IS HNO3/NO3- a buffer? | show 🗑
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| What are the two reasons that buffers work? | show 🗑
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| show | determining a concencentration by reacting it with a solution of known concentration until an equivalence point is reached.
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| Titration of a weak acid and strong base has a pH of; | show 🗑
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| Titration of a strong acid with a weak base has a pH of: | show 🗑
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| show | pH jump for each H+ removed
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| show | between solid and aqueous solutions
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| What are the units of soluability? | show 🗑
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| What is soluability (S)? | show 🗑
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| show | increase, increase
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| show | increases, increases, unchanged
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| show | increases, decreases, increases
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| generally, you can improve salt soluabilit with | show 🗑
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| additional soluability rules for Ssalt: | show 🗑
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| For salts with basic anions, Ssalt ______ as pH ____ from 7 (gets more_____) | show 🗑
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| For salts with acidic cations, Ssalt ____ as pH ___ from 7 (gets more ____) | show 🗑
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| What is electrochemistry? | show 🗑
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| show | loss of electronsq
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| show | gain of electrons
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| What is the oxidation state of an atom? | show 🗑
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| show | reactions involving a transfer of electrons from one reactant (one being oxidized) to another reactant (one being reduced)
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| show | oxidized
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| show | reduced
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| show | devices that use spontaneous redox reactions to do electrical work. ex. wire
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| show | electrode where oxidation occurs, losing an e- to the wire. labelled (-)
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| show | electrode where reduction occurs, gaining e- from the wire
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| show | the "potential of difference"(emf) of a voltaic cell
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| show | 1 atm for gas, 25*C, 1M
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| show | intensive
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| What is a battery? | show 🗑
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| What is a lead-acid car battery? | show 🗑
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| What is an alkaline battery? | show 🗑
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| What is a lithium ion battery? | show 🗑
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| show | 1.2 V, fuel continuously flows into cell
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| What is thermodynamics? | show 🗑
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| What are the two parts of the universe? | show 🗑
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| How does a spontaneous process occur? | show 🗑
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| What is a reverse process? | show 🗑
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| What determines the spontaneous direction? | show 🗑
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| What is Entropy (S)? | show 🗑
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| show | increases
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| show | the state of each molecule in the sample
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| show | a measure of how many microstates are associated with a particular microstatic state
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| show | solid to liquid/gas and liquid to gas
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| if S>0 moles of gas is>> | show 🗑
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| show | increases
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| Because of the 3rd law of thermo, everything has a ___ entropy at temps above absolute zero | show 🗑
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