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Chem 209 EXAMS BUNDLE-Questions with Correct Answers/ Latest Update/ 100% Pass
Chem 209 EXAMS BUNDLE-Questions with Correct Answers/ Latest Update/ 100% Pass
[Show more]Chem 209 EXAMS BUNDLE-Questions with Correct Answers/ Latest Update/ 100% Pass
[Show more]Draw a block diagram of a GC instrument, labeling all the important components. - 
️️Mobile phase reservoir ---> Sample injector (micro syringe) ---> Stationary Phase 
(column) ---> Detector (thermal conductor) ----> Read-out (computer) 
What quantities are plotted on the x- and y-ax...
Preview 1 out of 2 pages
Add to cartDraw a block diagram of a GC instrument, labeling all the important components. - 
️️Mobile phase reservoir ---> Sample injector (micro syringe) ---> Stationary Phase 
(column) ---> Detector (thermal conductor) ----> Read-out (computer) 
What quantities are plotted on the x- and y-ax...
response, time - ️️What quantities are plotted on the x- and y-axes of a 
chromatogram? (x first) 
peak area, concentration - ️️What quantities are plotted on the x- and y-axes of a 
calibration curve? (x first) 
retention time - ️️the time it takes for the molecule to travel through the...
Preview 1 out of 1 pages
Add to cartresponse, time - ️️What quantities are plotted on the x- and y-axes of a 
chromatogram? (x first) 
peak area, concentration - ️️What quantities are plotted on the x- and y-axes of a 
calibration curve? (x first) 
retention time - ️️the time it takes for the molecule to travel through the...
What are Bronsted-Lowry acids and bases? -️️acids are proton donors and bases are 
proton acceptors. 
What is the difference between a strong acid and a weak acid? Give three examples of each 
- ️️For strong acids all substances would break down when acid is put into water. With 
weak acids ...
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Add to cartWhat are Bronsted-Lowry acids and bases? -️️acids are proton donors and bases are 
proton acceptors. 
What is the difference between a strong acid and a weak acid? Give three examples of each 
- ️️For strong acids all substances would break down when acid is put into water. With 
weak acids ...
What is the Bronstead-Lowry definition of an Acid? - ️️They are proton DONORS! [H+] 
What is the Bronstead-Lowry definition of a Base? - ️️They are proton ACCEPTORS! 
[H+] 
Example/further description of Bronstead-Lowry Acids - ️️These give AwAy protons; 
emphasis on the A's.... "A.P.A...
Preview 1 out of 3 pages
Add to cartWhat is the Bronstead-Lowry definition of an Acid? - ️️They are proton DONORS! [H+] 
What is the Bronstead-Lowry definition of a Base? - ️️They are proton ACCEPTORS! 
[H+] 
Example/further description of Bronstead-Lowry Acids - ️️These give AwAy protons; 
emphasis on the A's.... "A.P.A...
What is the balanced chemical reaction of Fe3+ with thiocyanate? -️️SCN-(aq) + 
Fe3+(aq) = Fe(SCN)2+(aq) 
Show the equation for Beer's Law and define all the terms (including units) - ️️A=Ebc 
A= Sample's measured absorbance 
E= molar absorptivity at the wavelength used (L/(mol x cm) 
b= w...
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Add to cartWhat is the balanced chemical reaction of Fe3+ with thiocyanate? -️️SCN-(aq) + 
Fe3+(aq) = Fe(SCN)2+(aq) 
Show the equation for Beer's Law and define all the terms (including units) - ️️A=Ebc 
A= Sample's measured absorbance 
E= molar absorptivity at the wavelength used (L/(mol x cm) 
b= w...
Zn -️️zinc 
Ge - ️️germanium 
As - ️️arsenic 
Br - ️️bromine 
Kr - ️️krypton 
Sr - ️️strontium 
Ag - ️️silver 
Cd - ️️cadmium
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Add to cartZn -️️zinc 
Ge - ️️germanium 
As - ️️arsenic 
Br - ️️bromine 
Kr - ️️krypton 
Sr - ️️strontium 
Ag - ️️silver 
Cd - ️️cadmium
What is a back titration? - ️️A titration in which a known excess of titrant is added and 
then the excess is carefully titrated. 
What is the balanced chemical equation for the complete reaction between CO3 2- and HCl? 
Between KHP and NaOH? SHOW THE NET IONIC EQUATIONS. - ️️2HCl(aq) + CO3 ...
Preview 2 out of 15 pages
Add to cartWhat is a back titration? - ️️A titration in which a known excess of titrant is added and 
then the excess is carefully titrated. 
What is the balanced chemical equation for the complete reaction between CO3 2- and HCl? 
Between KHP and NaOH? SHOW THE NET IONIC EQUATIONS. - ️️2HCl(aq) + CO3 ...
Chemistry - ️️the science dealing with the composition of matter and the changes in 
composition that matter undergoes 
Macroscopic - ️️the overall view 
Microscopic - ️️looking deeper into things 
Scientific Method - ️️involves making observations, formulating hypotheses, and 
perfo...
Preview 1 out of 2 pages
Add to cartChemistry - ️️the science dealing with the composition of matter and the changes in 
composition that matter undergoes 
Macroscopic - ️️the overall view 
Microscopic - ️️looking deeper into things 
Scientific Method - ️️involves making observations, formulating hypotheses, and 
perfo...
Bronsted-Lowry acid -️️electron pair acceptor & p+ donor 
Bronsted-Lowry base -️️electron pair donor & p+ acceptor 
Strong acid - ️️dissociates fully in water (higher [H+]) 
Weak acid -️️partially dissociates in water (lower [H+]) 
Strong base -️️100% ionized in solution 
Weak ba...
Preview 1 out of 2 pages
Add to cartBronsted-Lowry acid -️️electron pair acceptor & p+ donor 
Bronsted-Lowry base -️️electron pair donor & p+ acceptor 
Strong acid - ️️dissociates fully in water (higher [H+]) 
Weak acid -️️partially dissociates in water (lower [H+]) 
Strong base -️️100% ionized in solution 
Weak ba...
What is a back titration? - ️️A titration in which a known excess of titrant is added and 
then the excess is carefully titrated. 
What is the balanced chemical equation for the complete reaction between CO3 2- and HCl? 
Between KHP and NaOH? SHOW THE NET IONIC EQUATIONS. - ️️2HCl(aq) + CO3 ...
Preview 1 out of 2 pages
Add to cartWhat is a back titration? - ️️A titration in which a known excess of titrant is added and 
then the excess is carefully titrated. 
What is the balanced chemical equation for the complete reaction between CO3 2- and HCl? 
Between KHP and NaOH? SHOW THE NET IONIC EQUATIONS. - ️️2HCl(aq) + CO3 ...
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