LARUTAN PENYANGGA

Quiz
•
Chemistry
•
11th Grade
•
Hard
Faisal Faisal
Used 4+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
15 mins • 10 pts
Diketahui beberapa senyawa berikut :
1. CaF2
2. Fe(NO3)2
3. K3PO4
4. Al2S3
5. ZnSO4
Berdasarkan data diatas, garam yang memiliki pH < 7 adalah . . ..
1,3
1,2
2,5
3,4
4,5
2.
MULTIPLE CHOICE QUESTION
15 mins • 10 pts
Perhatikan data berikut ini :
1.CH3COO- + H2O ==> CH3COOH + OH-
2.PO43- + 3H2O ==> H3PO4 + 3OH-
3.NH4+ + H2O ==> NH4OH + H+
4.CN- + H2O ==>HCN + OH-
5.Al3+ + 3H2O ==> Al(OH)3 + 3H+
Pasangan persamaan reaksi hidrolisis yang bersifat basa adalah . . .
3,5
2,3
2,5
1,2
4,5
3.
MULTIPLE CHOICE QUESTION
15 mins • 10 pts
Garam berikut yang mengalami hidrolisis sebagian adalah ….
natrium klorida
kalium nitrat
amonium asetat
kalium sulfida
kalium sulfat
4.
MULTIPLE CHOICE QUESTION
15 mins • 10 pts
Garam berikut yang mengalami hidrolisis sempurna adalah ….
K2CO3
(NH4)2S
Al2(SO4)3
NaCl
CH3COONa
5.
MULTIPLE CHOICE QUESTION
15 mins • 10 pts
Garam berikut yang jika dilarutkan dalam air akan mempunyai pH > 7 adalah ….
Na2SO4
KCN
NH4Cl
NH4NO3
KNO3
6.
MULTIPLE CHOICE QUESTION
15 mins • 10 pts
Bila Ka CH3COOH = 1 x 10–5, maka pH larutan Ba(CH3COO)2 0,1 M adalah ….
1
5 – log 1,4
9
9 – log 1,4
9 + log 1,4
7.
MULTIPLE CHOICE QUESTION
15 mins • 10 pts
Bila Ka = 10–5, maka besarnya pH larutan Ca(CH3COO)2 0,2 M adalah ….
9+log 2
9
8+log 2
5
5-log 2
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