Penilaian Harian Larutan Penyangga XI IPA 3
Quiz
•
Chemistry
•
11th Grade
•
Medium
Farihatul Janah
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1. Pernyataan yang benar tentang larutan penyangga adalah…
a. Mempertahankan pH sistem saat penambahan sedikit asam atau sedikit basa
b. Mempertahankan pH sistem saat penambahan asam dalam jumlah banyak
c. Mampu mengubah pH sistem saat penambahan sedikit basa atau sedikit asam
d. Pengenceran dan penambahan asam-basa dapat mengubah pH sistem secara drastis
e. Mempertahankan pH sistem saat penambahan basa dalam jumlah banyak
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
a. Larutan A saja
b. Larutan B saja
c. Larutan C saja
d. Larutan A dan B
e. Larutan B dan C
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
a. 1
b. 2
c. 3
d. 4
e. 5
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
4. Campuran berikut ini yang dapat membentuk larutan penyangga adalah …
a. 100 mL NaOH 0,2 M + 100 mL HCN 0,1 M
b. 100 mL NaOH 0,1 M + 100 mL NaCN 0,1 M
c. 100 mL NaCN 0,1 M + 100 mL HCN 0,1 M
d. 100 mL NH4OH 0,1 M + 50 mL H2SO4 0,1 M
e. 100 mL K2SO4 0,1 M + 50 mL H2SO4 0,1 M
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
5. Apakah yang dapat terjadi jika ke dalam 50 mL larutan penyangga dengan pH 5 ditambahkan 5 mL aquades?
a. pH akan naik menjadi netral
b. pH akan turun menjadi lebih asam
c. pH tidak akan berubah
d. pH akan naik drastis
e. pH akan turun drastis
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
6. Jika terdapat suatu larutan penyangga yang mempunyai pH 8,7 ditambahkan sedikit NaOH 0,1 M. Bagaimana pH larutan penyangga tersebut?
a. pH kurang dari 8,7
b. pH lebih dari 8,7
c. pH larutan tetap 8,7
d. pH menjadi netral
e. pH berkisar 7,0 – 8,7
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
7. Sedikit asam klorida (HCl) ditambahkan ke dalam larutan penyangga asam yang terbentuk dari CH3COOH dan CH3COONa. Reaksi yang terjadi dalam rangka mempertahankan pH adalah …
a. 2H+ (aq) --> H2 (g)
b. Na+ (aq) + Cl- (aq) --> NaCl (s)
c. H+ (aq) + CH3COO- (aq) --> CH3COOH (aq)
d. H+ (aq) + OH- (aq) --> H2O (aq)
e. Tidak ada reaksi
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