PENILAIAN AKHIR SEMESTER GENAP T.A 2020-2021
Quiz
•
Chemistry
•
11th Grade
•
Medium
Susilawati Suwito
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40 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
pH dari larutan garamNH4CN 0,2 M dengan Ka HCN 4,0X 10-10 mol/L ,Kb NH3= 1,8 X 10-5mol/L adalah....
8,287
8,227
8,872
8,827
8,782
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Larutan garam yang berasal dari Asam lemah dan basa lemah akan bersifat asam jika :
Ka> Kb
Ka< Kb
Kb > Ka
Ka = Kb
Kb dan Ka sebanding
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Dilarutkan 0,98 gram NaCN sampai volume 125 ml maka pH Larutan tersebut adalah...
Ka HCN =4 X10-10,Ar Na = 23,C =12,N =14
2 - log 3
3 -log 2
12 + log 3
11 - log 2
11 + log 2
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Larutan NaOH 0,30 M sebanyak 20 ml ditambahkan kedalam 40 ml larutan CH3COOH 0,15 M {Ka 10-5},maka pH larutan campurannya adalah...
7,0
7,5
8,0
8,5
9,0
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Sebanyak 50 ml larutan HCl 0,1 M dicampurkan dengan 50 ml larutan NH40H 0,1 M.Jika KbNH4OH =5 X10-5, pH larutan campuran adalah..
4,0
5,0
5,5
6,0
7,0
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Diantara garam-garam berikut yang mengalami hidrolisis total dalam air adalah....
NH4Cl
NH4CN
KCN
CuSO4
Mg SO4
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Garam yang mengalami Hidrolisis sebagian dan bersifat asam adalah...
CH3COONa
HCOOK
NH4Cl
KCl
CH3COONH4
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