Soal Kimia Kelas XI Larutan Penyangga/Buffer

Quiz
•
Chemistry
•
11th Grade
•
Hard
Sava Nuri Yasmasyita
Used 2+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Apa yang dimaksud dengan larutan penyangga?
Larutan yang dapat mengubah pH secara drastis
Larutan yang mempertahankan pH saat ditambahkan asam atau basa
Larutan yang tidak mengandung ion
Larutan yang hanya mengandung air
2.
MULTIPLE CHOICE QUESTION
20 sec • 2 pts
Larutan penyangga terdiri dari ?
Asam kuat dan basa kuat
Asam lemah dan garamnya
Basa lemah dan asam kuat
Air dan garam
3.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Manakah yang merupakan contoh larutan penyangga?
HCl dan NaCl
CH3COOH dan CH3COONa
NaOH dan KCl
H₂SO₄ dan NaOH
4.
MULTIPLE CHOICE QUESTION
20 sec • 2 pts
Larutan penyangga yang terdiri dari NH3 dan NH4Cl merupakan contoh penyangga
Asam kuat
Basa lemah
Asam lemah
Basa Kuat
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Fungsi utama larutan penyangga dalam reaksi kimia adalah
Mengurangi perubahan pH
Mencegah pembentukan endapan
Meningkatkan laju reaksi
Menghentikan reaksi
6.
FILL IN THE BLANK QUESTION
1 min • 3 pts
Sebuah larutan penyangga yang terdiri dari 0,15 M asam sitrat (C₆H₈O₇) dan 0,10 M natrium sitrat (Na₃C₆H₅O₇) memiliki pKa asam sitrat 3,13. Hitunglah pH larutan penyangga tersebut!
7.
FILL IN THE BLANK QUESTION
1 min • 3 pts
Sebuah larutan penyangga mengandung 0,25 M asam laktat (C₃H₆O₃) dan 0,10 M natrium laktat. Berapakah pH larutan tersebut? (pKa asam laktat = 3,86)
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