Banks SOal Larutan Penyangga

Quiz
•
Other, Other
•
12th Grade
•
Easy
Jean Soffian Banundi
Used 7+ times
FREE Resource
30 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Manakah yang disebut larutan buffer ...
100 mL NaOH 0,1 M + 50 mL HCl 0,1 M
100 mL NaOH 0,1 M + 50 mL CH3COOH 0,1 M
100 mL NH4OH 0,1 M + 50 mL HCl 0,1 M
100 mL NH4OH 0,1 M + 50 mL CH3COOH 0,1 M
100 mL NaOH 0,1 M + 100 mL CH3COOH 0,1 M
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ke dalam larutan basa lemah LOH ditambahkan padatan garam L2SO4 sehingga konsentrasi LOH menjadi 0,1 M dan konsentrasi L2SO4 0,05 M. Bila Kb = 10-5, maka pH larutan campuran adalah ...
11
9 + log 2
9
5
5 - log 2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Campuran 100 mL NaOH 0,01 M dan asam asetat 50 mL 0,03 M; maka pHa campuran adalah ... (Ka = 10-5)
5 - log 5
5 + log 5
5 - log 3
6 + log 2
6 - log 5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Satu liter larutan mengandung 0,1 mol NH3 (Kb - 10-5) dan 0,05 mol (NH4)SO4 mempunyai pH
5
5 - log 2
9
9 - log 2
9 + log 2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Suatu larutan penyangga terdiri dari campuran CH3COOH 0,01 M (Ka = 10-5) dan CH3COONa 0,1 M mempunyai pH sebesar 6. Perbandingan volume CH3COOH : CH3COONa adalah ...
1 : 1
1 : 10
10 : 1
1 : 100
100 : 1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Asam asetat mempunyai Ka = 10-5. bila dibuat larutan buffer dengan pH 4, dibuat dengan melarutkan 0,2 mol asam asetat dan x gram natrium asetat dalam 1 L air. besar x tersebut adalah ....
1,2
1,64
16,4
0,12
1,164
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pernyataan yang benar tentang larutan penyangga adalah ….
mempertahankan pH sistem agar tetap
memiliki komponen asam dan basa yang selalu berupa pasangan konjugasi
mampu mengatasi penambahan asam dan basa dalam jumlah banyak
memiliki kapasitas tertentu
pengenceran tidak mengubah konsentrasi ion H+ dan OH–
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