Post test Sifat Koligatif Larutan
Quiz
•
Chemistry
•
12th Grade
•
Practice Problem
•
Medium
NOR HIKMAH
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20 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Larutan yang titik didihnya paling tinggi adalah larutan ….
0,1 mol gula dalam 1.000 gram air
0,1 gram NaCl (Mr = 58,5) dalam 100 gram air
0,2 gram glukosa (Mr = 180) dalam 500 gram air
0,09 mol urea dalam 500 gram air
0,2 mol glukosa dalam 100 gram air
2.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Pada suhu 20°C tekanan uap jenuh air murni adalah 18 mmHg. Jika sistem mengikuti hukum Raoult, tekanan uap air jenuh larutan yang terbentuk dari 24 gram urea (Mr = 60) di dalam 72 gram air pada suhu 20°C adalah ….
18 x (0,4/5) mmHg
18 x (5/0,4) mmHg
18 x (9/10) mmHg
0,4 x (5/18) mmHg
(0,4/5) mmHg
3.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Titik beku larutan glukosa 0,1 molal dalam air adalah -0,18°C. Menurut perkiraan anda, larutan CaCl2 0,2 molal akan membeku pada suhu ….
-0,09°C
-0,18°C
-0,54°C
-0,90°C
-1,08°C
4.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Besarnya kenaikan titik didih dari larutan yang terbentuk dari 17,4 gram K2SO4 (Mr = 174) yang terurai sempurna dalam 250 gram air (Kb = 0,52°C/molal) adalah ….
0,124°C
0,208°C
0,444°C
0,624°C
0,676°C
5.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Larutan NaCl 0,4 m membeku pada suhu -1,448°C/molal, dapat diperkirakan bahwa NaCl di dalam air terurai sebanyak ….
2%
5%
50%
95%
100%
6.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Jika NaCl dianggap terurai sempurna dalam larutannya, larutan yang isotonis dengan 100 ml larutan NaCl 0,1 M adalah ….
100 ml glukosa 0,1 M
200 ml urea 0,2 M
100 ml urea 0,2 M
100 ml H2SO4 0,1 M
200 ml CaCl2 0,1 M
7.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Beberapa contoh penerapan sifat koligatif larutan dalam kehidupan:
(1) Desalinasi air laut menjadi air tawar
(2) Etilen glikol ditambahkan ke dalam air radiator
(3) Membuat cairan infus yang akan dimasukkan ke dalam tubuh
(4) Garam dapur yang digunakan pada pembuatan es putar
(5) Pemberian garam pada lintah
Penerapan sifat koligatif tekanan osmosis larutan terdapat pada nomor ….
(1) dan (2)
(2) dann (3)
(2) dan (4)
(3) dan (4)
(3) dan (5)
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