Hidrolisis dan Titrasi
Quiz
•
Chemistry
•
11th Grade
•
Medium
Nida Afifah
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12 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Diketahui beberapa senyawa berikut:
1) NaCl
2) NH4Cl
3) KCN
4) CH3COONH4
5) BeSO4
Berdasarkan data diatas, garam yang memiliki pH < 7 adalah . . ..
1 dan 3
1 dan 2
2 dan 4
2 dan 5
1 dan 5
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Di bawah ini yang merupakan ion dari asam lemah adalah....
CN- dan Cl-
Cl- dan Na+
NH4+ dan Be2+
CH3COO- dan NH4+
CH3COO- dan CN-
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Garam berikut yang jika dilarutkan dalam air akan mempunyai pH > 7 adalah ….
Na2SO4
KCN
NH4Cl
NH4NO3
KNO3
4.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Bila Ka CH3COOH = 1 x 10–5, maka pH larutan Ba(CH3COO)2 0,1 M adalah ….
9
5.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Larutan 200 mL HCl 0,8 M direaksikan dengan 200 mL NH4OH 0,8 M sesuai reaksi:
NH4OH (aq) + HCl (aq) → NH4Cl (aq) + H2O (l)
Harga pH larutan yang terjadi adalah …. (Kb NH4OH = 10−5)
5 - log 2
5 + log 2
5,5 − log 4
5,5 + log 4
5 - log 4
6.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Jika diketahui Kb NH4OH = 2 x 10-5. Maka pH larutan NH4Cl 0,08 M adalah ..... (log 2 = 0,3)
1,7
2,3
5,2
5,8
4,7
7.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Massa (NH4)2SO4 yang harus ditambahkan ke dalam 500 mL air sehingga diperoleh
larutan dengan pH = 5 - log 2 adalah.... (Mr = 132, Kb NH4OH = 10-5)
0,33 gram
3,3 gram
0,66 gram
6,6 gram
13,2 gram
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