ULANGAN SIFAT KOLIGATIF LARUTAN
Quiz
•
Chemistry
•
12th Grade
•
Medium
mariani surtiningsih
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15 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Perhatikan gambar berikut!
Larutan yang mempunyai tekanan uap paling kecil ditunjukan oleh gambar nomor ….
5
4
2
1
3
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Dari diagram PT pada fase H2O di
samping ini yang merupakan daerah
perubahan titik didih adalah ...
A-B
B-C
D-E
G-H
I-J
3.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Tekanan uap air jenuh pada suhu 30oC adalah 31,8 mmHg dan fraksi mol suatu zat dalam air adalah 0,056 mol. Pada suhu 30oC, tekanan uap larutan adalah ...
1,78 mmHg
33,59 mmHg
17,8 mmHg
30,02 mmHg
28,30 mmHg
4.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Dilarutkan 18 gram glukosa C6H12O6 ke dalam 500 gram air.
Jika tetapan titik beku molal air (Kf) = 1,8OC mol–1 Ar : C = 12 , H = 1 O = 16.
Titik beku larutan tersebut adalah….
–0,18oC
–0,36oC
–1,8 oC
. –3,6 oC
–7,2 oC
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Data percobaan penurunan titik beku:
jenis zat terlarut
konsentrasi molal larutan
jenis pelarut
jenis partikel zat terlarut
jumlah partikel zat terlarut
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Adanya zat terlarut dapat mengakibatkan ….
tekanan uap jenuh larutan lebih tinggi dibanding pelarut
titik beku larutan lebih tinggi dari titik beku pelarut
tekanan osmotik larutan lebih kecil dari tekanan osmotik pelarut
titik didih larutan lebih tinggi dari titik didih pelarut
Tekanan uap jenuh berubah menjadi lebih besar
7.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Dalam 250 gram air dilarutkan 1,9 gram MgCl2, ternyata larutan membeku pada -0,3720C. Jika tetapan titik beku molal air = 1,86 oC/m, derajat ionisasi garam MgCl2
adalah ... (Ar: Mg = 24, Cl = 35,5)
0,40
0,55
0,75
0,87
0,98
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