PTS KIMIA KELAS XI GENAP TA 2022-2023
Quiz
•
Chemistry
•
11th Grade
•
Hard
Linda Ardana
Used 11+ times
FREE Resource
25 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 4 pts
Perhatikan reaksi berikut:
1) NH4+ (aq) + H2O (l) → NH3 (aq) + H3O+ (aq)
2) CH3COOH (aq) + HNO2 (aq) → CH3COOH2+ (aq) + NO2- (aq)
Spesi yang merupakan pasangan asam-basa konjugasinya adalah....
CH3COOH dengan NH3
NH4+ dengan NH3
NH3 dengan H3O+
CH3COOH dengan NO2-
NH4+ dengan H2O
2.
MULTIPLE CHOICE QUESTION
2 mins • 4 pts
Sebanyak 100 mL larutan CH3COOH 0,2 M dicampur dengan 100 mL larutan NaOH 0,2 M. Jika Ka CH3COOH= 1×10-5 dan Kw= 1×10-14 maka pH larutan setelah dicampur adalah...
2
4
5
6
9
3.
MULTIPLE CHOICE QUESTION
2 mins • 4 pts
Pada pelarutan NH3 terjadi kesetimbangan sebagai berikut:
NH3 (aq) + H2O (l) ⇔ NH4+ (aq) + OH- (aq)
Yang merupakan pasangan asam-basa konjugasinya adalah...
NH3 dengan H2O
NH4+ dengan OH-
NH3 dengan OH-
H2O dengan NH4+
H2O dengan OH-
4.
MULTIPLE CHOICE QUESTION
2 mins • 4 pts
Berdasarkan pengujian sampel diperoleh data sebagai berikut:
Nilai pH pada sampel limbah X dan Y berturut-turut adalah...
6,3 ≤ pH ≤ 8,3 dan 5,4 ≤ pH ≤ 6,3
6,3 ≤ pH ≤ 8,3 dan 4,2 ≤ pH ≤ 6,3
pH ≤ 8,3 dan 4,2 ≤ pH ≤ 6,3
pH ≤ 4,2 dan 4,2 pH ≤ 6,3
pH ≤ 8,3 dan pH ≤ 6,3
5.
MULTIPLE CHOICE QUESTION
2 mins • 4 pts
Jika larutan penyangga terbuat dari 70 mL CH3COOH 0,1 M (Ka=1×10-5) direaksikan dengan 100 mL NaOH 0,05 M maka pH larutannya adalah...
2-log 3
3-log 4
3-log 2
4-log 6
6-log 4
6.
MULTIPLE CHOICE QUESTION
2 mins • 4 pts
Perhatikan persamaan reaksi berikut:
1) CH3COOH + H2O ⇔ CH3COOH + OH-
2) CN- + H2O ⇔ HCN + OH-
3) Al3+ + 3H2O ⇔ Al(OH)3 + H+
4) NH4+ + H2O ⇔ NH4OH + H+
5) S2- + 2H2O ⇔ H2S + 2OH-
Pasangan persamaan reaksi hidrolisis untuk garam yang bersifat asam adalah...
1 dan 2
1 dan 3
2 dan 3
3 dan 4
4 dan 5
7.
MULTIPLE CHOICE QUESTION
2 mins • 4 pts
Perhatikan beberapa garam berikut:
1) CH3COONa
2) NH4Cl
3) K2SO4
4) (NH4)2SO4
5) CH3COONH4
Garam yang mengalami hidrolisis sebagian adalah...
1, 2, dan 3
1, 2, dan 4
2, 3, dan 4
2, 3, dan 5
3, 4, dan 5
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