
Kuis Persiapan KSN

Quiz
•
Chemistry
•
1st - 5th Grade
•
Hard
Erizan Pratama
Used 1+ times
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Tentukan %massa oksigen dari Fe2O3
10%
20%
30%
40%
50%
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
pH dari larutan CH3COOH 0,001M
Ka H3PO4= 1x10-5
1
2
3
4
5
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jika 2 g sampel batuan yang mengandung perak dilarutkan sehingga semua Ag+ diubah menjadi 0,234 g Ag2S.
Berapakah presentase perak di dalam batuan tersebut?
10,2%
11,5%
15,8%
16,7%
99%
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Data entalpi pembentukan standar:
C3H8(g) = -104 kJ/mol
CO2(g) = -394 kJ/mol
H2O(g) = -286 kJ/mol
Maka nilai reaksi dari pembakaran gas propana adalah?
-1034 kJ/mol
-1121 kJ/mol
-1134 kJ/mol
-2222 kJ/mol
-3213 kJ/mol
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Dari data potensial elektroda standar berikut:
maka
memiliki potensial sel sebesar?
0,1V
0,2V
0,78V
1,56V
3,12V
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