EVALUASI

Quiz
•
Chemistry
•
11th Grade
•
Hard
FEBRIYANTI FEBRIYANTI
Used 2+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Larutan penyangga dapat dibuat dengan mencampurkan zat dibawah ini, kecuali...
NH4Cl dan NH3
CH3COOH dan NaOH
Ba(CH3COO)2 dan NaOH
CH3COONa dan CH3COOH
NaH2PO4 dan Na2HPO4
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Larutan penyangga alami yang terdapat dalam darah adalah...
NH3/NH4+
H3PO4/H2PO4-
HCO3-/CO32-
H2CO3/HCO3-
CH3COOH/CH3COO-
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Sebanyak 100 ml CH3COOH 0,1 M ditambah 10 ml CH3COOK 0,1 M, pH campuran adalah 5. Harga Ka CH3COOH adalah...
10-3
10-4
10-5
10-6
10-7
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Campuran dibawah ini yang termasuk larutan buffer adalah...
50 ml CH3COOH 0,1 M + 50 ml NaOH 0,3 M
50 ml CH3COOH 0,2 M + 50 ml NaOH 0,1 M
50 ml CH3COOH 0,1 M + 50 ml NaOH 0,1 M
50 ml CH3COOH 0,2 M + 50 ml NaOH 0,2 M
50 ml CH3COOH 0,1 M + 50 ml NaOH 0,2 M
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diketahui Kb NH3 = 10-5. Perbandingan volume NH3 0,1 M dan HCl 0,1 M jika dicampurkan dan mempunyai pH = 9 adalah...
1 : 1
1 : 2
1 : 3
2 : 1
3 : 1
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Sebanyak 50 ml NH3 0,1 M ditambah 25 ml HCl 0,1 M. (Kb NH3 = 10-5). pH larutan adalah...
5
6
7
8
9
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Asam cuka 0,1 M (Ka = 10-5) sebanyak 100 ml pH-nya 3 ditambah natrium asetat 0,1 M, pH berubah menjadi 5. Banyaknya natrium asetat yang ditambahkan adalah...
200 ml
100 ml
75 ml
50 ml
25 ml
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