Penilaian Harian (Larutan Penyangga)
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
•
Hard
IMAM SAFI'I
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25 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Larutan penyangga adalah larutan yang mampu mempertahankan pH pada kisarannya, kecuali jika dilakukan....
Penambahan sedikit CH3COOH
Pengenceran 1 x semula
Penambahan sedikit NH3
Penambahan H2SO4 berlebih
Penambanhan sedikit H2SO4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
P dan Q
Q dan R
R dan S
R dan T
S dan T
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Terdapat beberapa larutan sebagai berikut.
(1) 50 mL CH3COOH 0,1 M
(2) 50 mL NH3 0,1 M
(3) 50 mL HNO3 0,1 M
(4) 100 mL NaOH 0,1 M
(5) 100 mL NH3 0,1 M
Pasangan larutan yang dapat menghasilkan larutan penyangga adalah....
(1) dan (2)
(1) dan (4)
(3) dan (5)
(3) dan (4)
(4) dan (5)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
H2CO3 dicampur dengan NaHCO3 akan membentuk larutan penyangga....
H2CO3 / NaHCO3
H2CO3 / HCO3-
CO32- / HCO32-
CO32- / HCO3-
H2CO3 / HCO3-
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Larutan penyangga mengandung H2S dan NaHS. Jika ditambahkan sedikit mol HCl, banyaknya mol....
H2S bertambah dan HS- dari garam berkurang
H2S dan HS- dari garam bertambah
H2S berkurang dan HS- dari garam bertambah
H2S berkurang dan HS- dari garam bertambah
H2S dan HS- dari garam tetap
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Konsentrasi ion H+ di dalam larutan yang mengandung 0,1 M asam format (Ka = 18 x 10-4) dan 0,1 M natrium format adalah....M.
1,8 x 10-2
1,8 x 10-3
1,8 x 10-4
1,8 x 10-5
1,8 x 10-6
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
pH larutan yang terdiri dari campuran 50 mL CH3COOH 0,1 M dan 50 mL CH3COONa 0,1 M (Ka = 18 x 10-4) adalah....(log 1,8 = 0,26)
2,70
2,72
2,74
2,76
2,78
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