
Kuis OKTAN ITB
Quiz
•
Chemistry
•
Professional Development
•
Hard
Devita Marlina Venessa
Used 1+ times
FREE Resource
30 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Suatu senyawa dianalisi kandungan unsur-unsurnya dan diperoleh persen massa dari unsur-unsurnya yakni 40,0% C, 53,3% O, dan 6,67% H. Diketahui berat molekul senyawa tersebut adalah 180 g/mol, apakah rumus molekul senyawa tersebut?
C7H14O5
C8H4O5
C6H12O6
C9H8O4
C6H18O5
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dari senyawa dibawah ini, manakah senyawa yang bersifat sebagai amfoter?
CO2
H2O
NaOH
KBr
NaCl
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2 mmol HCl ditambahkan 3 mL NaOH 0,5 M. Berapakah pH Larutan campuran tersebut jika total volum campuran 10 mL?
1,20
1,30
1,40
1,50
1,60
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Suatu sampel padatan yang mengandung banyak bahan organik perlu dilarutkan untuk ditentukan berbagai kandungan yang ada di dalamnya. Pelarut yang digunakan biasanya adalah pelarut yang cukup asam agar bisa melarutkan sampel dengan baik, namun tidak mengoksidasi zat organik yang terkandung di dalamnya. Pelarut yang sebaiknya digunakan adalah.....
HNO3
H2SO4
CH3COOH
aqua regia
HCl
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Berikut ditampilkan sebuah reaksi. CH3COOH + H2O → CH3COO-+ H3O+
Berdasarkan reaksi di atas, CH3COOH merupakan asam jenis.....
Lewis
Bronsted-Lowry
Arrhenius
Dalton
Konjugasi
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Suatu larutan HNO3 pekat 90% w/w memiliki densitas sebesar 1,10 g/mL. Berapakah konsentrasi HNO3 pekat tersebut?
13,7 M
13,5 M
15,7 M
15,3 M
15,0 M
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Molekul dibawah ini yang merupakan asam lewis adalah.....
NaOH
H2SO4
NH3
AlCl3
CH3CH2OH
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