Suatu larutan tersusun dari 2 mol urea dalam 3 mol air, maka fraksi mol urea dalam larutan tersebut adalah ....
UJIAN AKHIR SEMESTER_GANJIL_2021/2022

Quiz
•
Chemistry
•
12th Grade
•
Hard
George Herisusanto
Used 9+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2/3
3/2
2/5
3/5
1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pengertian yang tepat tentang kemolaran adalah banyaknya zat terlarut tiap ....
liter larutan
liter pelarut
1.000 gram larutan
1.000 gram pelarut
1.000 gram air
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Semua sifat berikut tergolong sifat koligatif larutan, kecuali....
penurunan tekanan uap
tekanan osmosis
kenaikan titik didih
kepekatan larutan
penurunan titik beku
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebanyak 100 gram sukrosa (Mr = 342) dilarutkan dalam 500 gram air pada suhu 25 °C mempunyai tekanan uap ... (tekanan uap air jenuh = 23,76 mmHg).
0,247 mmHg
24 mmHg
23,513 mmHg
25 mmHg
23,76 mmHg
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Sebanyak 450 gram glukosa (Mr = 180) dilarutkan dalam 2 kg air (Kb = 0,52) akan mendidih pada suhu ... °C.
0,65
100,65
100
100,75
100,325
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Sebanyak 17,1 gram gula tebu, C12H22O11 dilarutkan dalam 500 cm3 air. Bila Ar C = 12; O = 16; dan H = 1, maka kemolaran dari larutan gula tersebut adalah ....
0,05 m
0,5 m
0,01 m
0,2 m
0,1 m
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Sepuluh gram urea CO(NH2)2 dilarutkan dalam 90 mL air. Bila tekanan uap jenuh air pada suhu 25 °C adalah 62 cmHg, maka tekanan uap larutan urea tersebut adalah
....
2 cmHg
60 cmHg
30 cmHg
64 cmHg
31 cmHg
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