KIMIA 12 S1 HAL 020

Quiz
•
Chemistry
•
12th Grade
•
Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tentukan titik beku dari larutan NaCl 0,5 M! (Kf air = 1,86 Kg°C/mol)
2,38°C
-1,86 °C
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tentukan titik didih dari larutan MgCl2 1,2 M! (ρ = 1 g/ml, Kb = 0,512 Kg°C/mol
101,84 °C
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tentukan tekanan osmosis dari larutan KI 10% dengan asumsi (ρ = 1 g/ml, pada 298 K)
58,84 atm
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apa perbedaan antara koloid liofil dengan koloid liofob?
Koloid liofil, suatu sistem dimana zat terdispersinya
mempunyai daya tarik terhadap medium pendespersinya.
Sebaliknya, koloid liofob suatu sistem dimana zat
terdispersinya mempunyai daya tarik yang kecil terhadap medium pendespersinya. Jika medium dispersinya
adalah air, maka kedua jenis ini disebut koloid hidrofil
dan koloid hidrofob.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jelaskan yang dimaksud dengan elektroforesis?
Elektroforesis adalah peristiwa bergeraknya partikel koloid ke elektrode positif atau negatif. Partikel koloid yang bermuatan negatif akan bergerak ke elektrode positif dan sebaliknya.
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