
Postest Sifat Koligatif Larutan
Quiz
•
Chemistry
•
University
•
Hard
Muhammad Fathurrahman
Used 1+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Larutan dibuat dengan melarutkan 10 gram urea (NH₂CONH₂, M=60 g/mol) ke dalam 100 gram air (M=18 g/mol). Jika tekanan uap air murni pada suhu tertentu adalah 23,8 mmHg, berapa tekanan uap larutan tersebut?
22,8 mmHg
23,3 mmHg
23,5 mmHg
23,7 mmHg
23,8 mmHg
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebanyak 5 gram glukosa (C₆H₁₂O₆, M=180 g/mol) dilarutkan dalam 200 gram air. Jika Kb air adalah 0,52°C·kg/mol, berapa kenaikan titik didih larutan tersebut?
0,072°C
0,087°C
0,125°C
0,145°C
0,157°C
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebanyak 10 gram NaCl (M=58,5 g/mol, i=2) dilarutkan dalam 500 gram air. Jika Kf air adalah 1,86°C·kg/mol, berapa penurunan titik beku larutan tersebut?
0,32°C
0,64°C
0,93°C
1,28°C
1,86°C
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Larutan dibuat dengan melarutkan 0,5 mol sukrosa dalam air hingga volume total 2 liter. Jika larutan berada pada suhu 25°C, berapakah tekanan osmotiknya? (R=0,0821 L·atm/mol·K)
3,07 atm
6,15 atm
12,3 atm
24,6 atm
49,2 atm
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebanyak 10 gram CaCl₂ (M=111 g/mol, i=3) dilarutkan dalam 90 gram air. Jika tekanan uap air murni pada suhu tertentu adalah 25 mmHg, berapa tekanan uap larutan tersebut?
22,5 mmHg
23,0 mmHg
23,5 mmHg
24,0 mmHg
24,5 mmHg
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dua larutan masing-masing mengandung 0,1 mol glukosa (larutan A) dan 0,1 mol NaCl (larutan B) dalam 500 gram air. Mana yang memiliki titik didih lebih tinggi dan berapa selisihnya? (Kb air = 0,52°C·kg/mol)
A lebih tinggi, 0,052°C
A lebih tinggi, 0,104°C
B lebih tinggi, 0,052°C
B lebih tinggi, 0,104°C
Titik didih sama
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tekanan osmotik larutan pada suhu 27°C adalah 4,92 atm. Jika larutan dibuat dengan melarutkan NaCl (i=2) hingga volume total 1 liter, berapa konsentrasi molar larutannya? (R=0,0821L·atm/mol·K)
0,05 M
0,10 M
0,20 M
0,25 M
0,50 M
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