
Penilaian Akhir Semester Ganjil TP 2024/2025
Quiz
•
Chemistry
•
12th Grade
•
Easy
MADE PRAJNITYA
Used 6+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Jika fraksi mol urea dalam air yaitu 0,2 dan tekanan uap air pada 200C adalah 17,5 mmHg. Tekanan uap jenuh larutan pada kondisi tersebut ….
13 mmHg.
14 mmHg.
12 mmHg.
10 mmHg.
15 mmHg.
2.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Pada larutan 10% massa glukosa (C6H12O6) dalam air, diketahui memiliki tekanan uap air 24 mmHg pada suhu 250C (Mr glukosa 180 dan Mr air = 18). Penurunan tekanan uap jenuh larutan adalah ….
0,24 mmHg
2,4 mmHg
0,33 mmHg
24 mmHg
23 mmHg
3.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Untuk menaikkan titik didih 250 mL air menjadi 100,010C, pada tekanan 1 atm (Kb air = 0,520C/m) maka jumlah massa gula (Mr= 342) yang harus dilarutkan adalah ....
8,55 gram
17,22 gram
16 gram
17,1 gram
1,64 gram
4.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Tekanan osmotik dari 500 mL larutan NaCl yang mengandung 5,85 gram NaCl pada suhu 270C (Ar Na= 23, Cl= 35,5) jika tetapan R= 0,082 L.atm/mol.K adalah …
9,84 atm
9 atm
4,92 atm
0,88 atm
5,2 atm
5.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Suatu zat nonelektrolit (Mr= 120) dilarutkan dalam 100 gram air. Diketahui tetapan kenaikan titik didih molal air 0,52. Jika larutan mendidih pada suhu 100,180C. berapa massa zat yang dilarutkan dalam air?
3,245
4,154 gram
6,753
7,854
1,543
6.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Sebanyak 1,44 gram zat nonelektrolit dilarutakan dalam 200 gram air. Jika larutan mendidih pada suhu 100,060C dan Kb air = 0,5. berapa massa molekul relative zat nonelektrolit tersebut.
10
20
60
30
180
7.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Larutan 40 gram urea ( Mr = 60) dalam 150 gram air dicampur dengan 120 gram larutan etanol 5% (Mr = 46) jika Kf air = 1,86 berapakah titik beku campuran tersebut.
10,46
-10,46
-7,89
7,89
-5,34
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