Larutan Penyangga
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
•
Medium
Mustika Putri
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7 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pernyataan yang benar tentang larutan penyangga adalah ….
mempertahankan pH sistem agar tetap
mampu mengatasi penambahan asam dan basa dalam jumlah banyak
memiliki kapasitas tertentu
pengenceran tidak mengubah konsentrasi ion H+ dan OH–
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Campuran di bawah ini merupakan komponen larutan penyangga, kecuali ….
NaOH dan HCl
CH3COOH dan NaOH
CH3COONa dan CH3COOH
NH4Cl dan NH3
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Pasangan larutan berikut ini yang menghasilkan larutan penyangga adalah ….
100 mL NH4OH 0,2 M + 100 mL HCl 0,1 M
100 mL NH4OH 0,2 M + 100 mL HCl 0,3 M
100 mL NaOH 0,2 M + 100 mL CH3COOH 0,2 M
100 mL NaOH 0,2 M + 100 mL HCN 0,1 M
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Sistem larutan penyangga dapat dibuat dengan mencampurkan 100 cm3 larutan CH3COOH 0,1 M dengan larutan ….
80 cm3 NaOH 0,1 M
100 cm3 NaOH 0,1 M
120 cm3 NaOH 0,1 M
50 cm3 HCl 0,1 M
5.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
Ke dalam larutan basa lemah LOH ditambahkan padatan garam L2SO4 sehingga konsentrasi larutan LOH menjadi 0,1 M dan konsentrasi L2SO4 0,05 M. Bila Kb basa LOH = 10-5 maka pH campuran adalah…
5
9
5-log 2
9+log 2
6.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
Jika 50 ml larutan CH3COOH 0,1 M dicampurkan dengan 100 ml CH3COONa 0,2 M (Ka CH3COOH = 1,8 x 10-5), maka pH campuran adalah…
6-log 4,5
6
5
5-log 4,5
7.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
Harga pH campuran antara 100 ml larutan C6H5COOH 0,2 M dengan 100 ml larutan NaOH 0,1 M jika diketahui Ka C6H5COOH = 6 x 10-5.
5-log 6
6-log 5
4-log 6
6-log 4
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