Kimia
Quiz
•
Chemistry
•
10th - 12th Grade
•
Practice Problem
•
Hard
Used 5K+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Sifat berikut yang merupakan perubahan kimia,kecuali....
kertas menjadi abu
ubi menjadi tape
kayu menjadi arang
nasi menjadi basi
air menjadi es
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bilangan oksidasi carbon dari senyawa Na2C2O4 adalah…
+2
+3
+4
+5
+6
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Larutan yang tak dapat terhidrolisis adalah garam …
Na2S
CaCO3
CaCl2S
CaSO4
CH3COOK
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Berapa ml larutan NaOH 0,2 M harus ditambahkan ke dalam 200 ml larutan CH3COOH 0,2 M untuk membuat larutan penyangga dengan pH = 5(Ka CH3 COOH = 1.10-5)…
150 ml
100 ml
225 ml
250 ml
200 ml
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jika pH larutan 0,01 M suatu asam lemah HA adalah 3,5 maka tetapan asam (Ka ) adalah...
1 x 10-3
2 x 10-3
1 x 10-5
1 x 10-7
1 x 10-8
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pasangan asam-basa konjugasi dari reaksi :
CH3COOH + HNO2 → CH3COOH2+ + NO2- adalah…
CH3COOH dan HNO2
CH3COOH dan NO2-
CH3COOH2+ dan NO2-
CH3COOH2+ dan HNO2
CH3COOH2+ dan CH3COOH
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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