QUIZ 1
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
•
Hard
Wahyu Fitriani
Used 40+ times
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25 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Pernyataan yang benar tentang larutan penyangga adalah ….
mempertahankan pH sistem agar relatif 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–
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Yang merupakan larutan penyangga adalah ….
CH3COOH / CHOOH
CHOO– / CH3COO–
HCl / Cl–
NH3 / NH4OH
CH3COOH / CH3COO-
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Larutan penyangga dapat dibuat dengan pencampuran berikut, kecuali ….
asam lemah berlebih dan basa kuat
basa lemah dan garamnya
garam asam lemah berlebih dan asam kuat
asam lemah dan basa lemah
basa lemah dan asam konjugasinya
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Campuran di bawah ini merupakan komponen larutan penyangga, kecuali
NH4Cl dan NH3
CH3COONa dan CH3COOH
CH3COOH dan NaOH
NaOH dan NaHCO3
NaOH dan HCl
5.
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
100 mL NaOH 0,2 M + 100 mL HCN 0,2 M
6.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Campuran berikut ini yang dapat membentuk larutan penyangga adalah
100 mL NaOH 0,1 M + 100 mL HCl 0,1 M
100 mL NaOH 0,1 M + 100 mL NaCN 0,1 M
100 mL NaCN 0,1 M + 50 mL HCN 0,1 M
100 mL NH4OH 0,2 M + 50 mL H2SO4 0,1 M
100 mL K2SO4 0,1 M + 50 mL H2SO4 0,1 M
7.
MULTIPLE CHOICE QUESTION
3 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 HCl 0,1 M
120 cm3 NaOH 0,1 M
50 cm3 HCl 0,1 M
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