Bufer
Quiz
•
Chemistry
•
2nd Grade
•
Easy
ENDANG ERNAWATI
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35 questions
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1.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Untuk membentuk larutan penyangga dengan pH 9, maka 100 ml larutan HCl 0.1 M harus dicampur dengan larutan NH4OH 0.2 M sebanyak....(Kb NH4OH = 10-5)
100 ml
150 ml
200 ml
250 ml
300 ml
Answer explanation
100 ml
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Larutan penyangga asam dapat dibuat dengan melarutkan ke dalam air…
Basa lemah dan garamnya
Asam kuat dan basa lemah berlebih
Asam lemah berlebih dan basa kuat
Garam asam kuat dan suatu asam kuat
Garam basa lemah berlebih dan asam kuat
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Campuran di bawah ini merupakan komponen larutan penyangga, kecuali…
NaOH dan HCl
NH4Cl dan NH3
H2CO3 dan NaHCO
CH3COOH dan NaOH
CH3COONa dan CH3COOH
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perhatikan data uji pH beberapa larutan!
Larutan yang merupakan larutan penyangga adalah…
P dan Q
Q dan R
R dan S
R dan T
S dan T
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berikut ini merupakan senyawa atau ion yang dapat bersifat larutan penyangga:
i. NH3 dan NH4+
ii. H2CO3 dan HCO3-
iii. HCOOH dan HCOO-
iv. CH3COOH dan CH3COO-
v. C5H7O4CO2 dan C5H7O4CO2-
Larutan penyangga yang terdapat dalam cairan extra sel makhluk hidup adalah nomor…
V
IV
III
II
I
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Jika 100 mL larutan HCl 0,1 M dicampurkan dengan 50 mL larutan NH3 0,3 M (Kb = 10-5), maka pH larutan yang terjadi adalah…
8 - log 2
8 + log 5
9 - l0g 5
9 + log 3
9 + log 5
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Suatu larutan yang mengandung 0,1 mol asam asetat (Ka = 10-5) dan 0,01 mol natrium asetat mempunyai pH sebesar…
3
4
5
6
7
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