University:
Carleton College
Course:
CHEM 122 | Introduction to Chemistry
Academic year:

2022
Views:

329

Pages:

4
Author:

larbiwxcvbn

tl_z,_�--------- Hour__ Name ___ Acids/Bases Review Packet Your test will consist of multiple choice/short answer problems covering questions #1-5 in this packet. There will be 6 questions where you will have to convert between [H+], [OH.], pH, and pOH, and 1 titration question where you will be doing the math like you did in your titration lab. The following equatidns will be given to you on the test: pH+ pOH = 14 pOH = -log[OH"] 1. Describe acids in terms of... a. pH and whether they add [H+] or [OH"] to a solution ? � I es S b. physical properties a Qrvlo__9 e \ �v Iv\ c- 11 1 c. chemical properties . r-eo.-c)- l,A)if� • Ye o. d C�t..../ bo,,w C � .1 'l> e 1 'o d. color when using a phenophthalien indicator 'P Y7)6 i...A.CC ea.z. .f-o a u. le CJeo..,,.- e. color when using a bromothymol blue indicator f. °'- 561 h so \A/" s s u f'J, ,.,,:>/ V"Y' e-i oJ- i +o [11 + J +hQA') -1 J C\. d d f-4 2. \../ € \ \ � 3 common household items that are acids g. How can you tell by the chemical formula whether something is an acid? s+a,vk W/ ( µe I , H µ z_SD4 , e-lc .') 2. Describe bases in terms of... a. pH and whetherI they add [H+] or [OH"] to a solution -p'r\ O\reCA+tr +-1/\c,.._n b. physical properties b 1-+tc,, s I '°�pert-( Ci>JI\ 0,0JMCA�,(' c. chemical properties l, C\.cld [D'rl-J /i.1,·,,j +o .Se>) r\ -h),S(}PJ \IV ne V\ 0 (l cJ ('C( 'il) CA So! l.(."11( V\ J I (J" \ ·t O G.. 1 l V) ;;() 7 d. color when using a phenophthalien indicator y \ V) e. color when using a bromothymol blue indicator f. b l \.A e 3 common household items that are bases 6:r0v, ·(\ c\ e0vv1ey , M t\ k. 0-JrA M Cvt I °'-.. k s \t\ o__yYr pOD , 1 g. How can you tell by the chemical formula whether something is an bases? tx't 60 \ V'\ or- Nl-1 2 - 6 \-t 3. Describe1��tl�°ie�ms of... b. you can neutralize an acid by adding a.... you can neutralize a base by adding a.... c. btls-e CX.L I c\ 4. Describe what an indicator is used for. Does it affect a reaction in any way? • tD � �Dl0 w,-� D,__ S'b\ ·Y'I +he I XV) IS I V) l\e,i d ,· c., Q./l \,( °'-- Colo--- 0"10->,,9 c c,, b vv� ett,, e,,,- !:>{fi.f t,h. nc, J 5. What is the difference between a strong acid and a weak acid in terms of dissociation (breaking into ions)? (You will probably have to look this up) � p le+c t 'J Cbrr�t. a.t1d\ ch�S6woJ-eIVlh:, t-r5 lGVl\) tx t--ftl� H 1 tCI- - 01'YoY13 V\ts\ 6. Fill in the table below , lxlD- 5 ) � l D� � 1i1D· 11 ) t I D- 7 -; '')(ID .. 5 \2 \\ 7 1 X 10-7 \x\o·� I \ ')(' � --\ 3 -:;;.: ) pH \)(\D·' 1 X 10" 12 1 D- Chott #)p [OH"] [H '] D·ID ))(I \1 1 r p· \-\ ( � 1++ - 10 I \ pOH 9 z 3 7 i