Kimia-XII Sifat Kaligatif Larutan
Quiz
•
Chemistry
•
12th Grade
•
Medium
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Larutan yang mengandung 20 gram zat nonelektrolit dalam 1 liter air (massa jenis air 1g/mL) mendidih pada suhu 100,52 °C. Jika Kb air = 0,52 °C, maka Mr zat nonelektrolit tersebut adalah … .
20
40
100
150
200
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Penambahan 5,4 gram suatu zat nonelektrolit ke dalam 300 gram air ternyata menurunkan titik beku sebesar 0,24 °C. Jika Kf air = 1,86 °C, maka Mr zat tersebut adalah … .
8,04
12,56
60,9
108,56
139,50
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Sebanyak 500 mL larutan yang mengandung 17,1 gram zat nonelektrolit pada suhu 27 °C mempunyai tekanan osmotik 2,46 atm. Jika R = 0,082 L.atm.mol–1K–1, maka Mr zat nonelektrolit tersebut adalah ... .
90
150
207
278
342
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Sebanyak 60 gram urea (Mr = 60) dilarutkan dalam 72 gram air (Mr = 18). Jika tekanan uap pelarut murni pada suhu 20 °C adalah 22,5 mmHg, maka tekanan uap larutan pada suhu tersebut adalah … .
4,5 mmHg
9,0 mmHg
18 mmHg
22,5 mmHg
29 mmHg
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Urea seberat 2,4 gram dilarutkan ke dalam air sampai volume 250 cm3 pada suhu 27 °C (Mr urea = 60 dan R = 0,082 L.atm.mol–1.K–1 ). Tekanan osmotik larutan tersebut adalah....
3,936 atm
4,418 atm
7,872 atm
15,774 atm
39,360 atm
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Di antara kelima larutan di bawah ini, yang titik bekunya paling tingi adalah larutan … .
Na2CO3 0,3 M
CH3COOH 0,5 M
glukosa 0,8 M
Mg(NO3)2 0,2 M
CuSO4 0,2 M
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Di antara larutan 0,01 M di bawah ini, yang mempunyai tekanan osmotik paling tinggi adalah … .
NaCl
C12H22O11
BaCl2
CO(NH2)2
[Cr(NH3)4Cl2]Cl
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