Chem 209 EXAMS BUNDLE-Questions with Correct Answers/ Latest Update/ 100% Pass

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...

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 ...

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...

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...

Zn -️️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 ...

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...

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...

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 ...