
sifat koligatif
Authored by Caroline Simorangkir XII IPA TA
Chemistry
12th Grade
Used 1+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Fraksi mol metanol dalam larutan air mengandung 80% metanol yaitu ….
0,3
0,5
0,2
0,69
0,9
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Larutan etanol dalam air yaitu 12% berat etanol, dengan massa jenis 0,98 mL–1 pada 20°C. Kemolalan etanol dalam larutan yaitu ….
0,05 m
0,12 m
2,55 m
2,96 m
12,00 m
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Sebanyak 11 g MgCl2 dilarutkan dalam 2 kg air, kemolalan larutan yang terbentuk yaitu ….
0,05 m
0,10 m
0,25 m
0,40 m
0,50 m
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Peristiwa berkurangnya tekanan uap larutan terjadi akibat ….
adanya zat terlarut yang mudah menguap
adanya zat terlarut yang sulit menguap
adanya komponen pelarut dalam fasa uap
pelarut dan zat terlarut yang tidak bercampur
penurunan gaya tarik antarmolekul
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Sebanyak X g C2H6O2 (Mr =62) dilarutkan ke dalam 468 g air (Mr =18) sehingga tekanan uap bosan larutan pada suhu 30°C = 28,62 mmHg. Jika pada suhu itu tekanan uap air murni 31,8 mmHg, harga X yaitu ….
358 g
270 g
179 g
90 g
18 g
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Jika tekanan osmotik dari 500 ml larutan fruktosa, C6H12O6 pada suhu 32°C sebesar 2 atm, massa fruktosa yang terlarut sebanyak ….
7,2 gram
9,0 gram
14,4 gram
18,0 gram
45,0 gram
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Penambahan 5,4 g suatu zat nonelektrolit ke dalam 300 g air ternyata menurunkan titik beku sebesar 0,24°C. Jika Kf air = 1,86 °C/molal, maka Mr zat tersebut adalah ….
a. 8,04
b. 12,56
c. 60,96
d. 108,56
e. 139,50
8,04
12,56
60,96
108,56
139,50
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