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 . . ..
HIDROLISIS GARAM
Quiz
•
Chemistry
•
11th Grade
•
Medium
octhan setyawan
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20 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
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
5 mins • 1 pt
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
5 mins • 1 pt
Garam berikut yang mengalami hidrolisis sebagian adalah ….
natrium klorida
kalium nitrat
amonium asetat
kalium sulfida
kalium sulfat
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Garam berikut yang mengalami hidrolisis sempurna adalah ….
K2CO3
(NH4)2S
Al2(SO4)3
NaCl
CH3COONa
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
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
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
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
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Sebanyak 250 mL larutan CH3COOH 0,2 M dicampur dengan 250 mL NaOH 0,2 M, membentuk suatu garam sesuai dengan reaksi :
CH3COOH(aq) + NaOH(aq) ==> CH3COONa(aq) + H2O(l)
(Ka = 1 10-9). pH campuran tersebut adalah . . . .
3
5
10
11
12
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