Soal Sifat Koligatif Larutan
Quiz
•
Chemistry
•
12th Grade
•
Medium

Rajamuddin S
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Suatu larutan terdiri dari 0,02 mol zat A dan 0,08 mol zat B. Fraksi mol untuk zat B adalah....
0,2
0,4
0,6
0,8
0,1
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Suatu zat non elektrolit sebanyak 24 gram di larutkan dalam air sehingga volumenya 250 mL dan mempunyai tekanan osmotik sebesar 32,8 atm pada suhu 270 C. Jika tetapan R = 0,082 L atm / mol K, massa molekul relatif zat tersebut adalah..
36
48
72
96
144
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Untuk menurunkan titik beku 2,5 liter air (massa jenis 1 gr/cm3) menjadi – 0,740 C pada tekanan 1 atmosfer (Kf = 1,86) diperlukan jumlah gula (Mr = 342 gram/mol ) yang harus dilarutkan sebanyak...
178
204
340
408
510
Answer explanation
massa zat = (0,74x2,5x342) : 1,86
massa zat = 340,16
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Glukosa (Mr=180) sebanyak 36 gram dilarutkan dalam 500 gram air (Mr=18) pada suhu 250 C. Bila tekanan uap air jenuh pada suhu tersebut 23,76 mmHg, penurunan tekanan uap larutan adalah...
0,16 mmHg
0,17 mmHg
0,19 mmHg
0,21 mmHg
0,24 mmHg
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Besarnya kenaikan titik didih larutan 17,4 gram K2SO4 (Mr=174) dan mengurai sempurna dalam 250 gram air dengan tetapan kenaikan titik didih molal air = 0,250 C/m adalah...
0,1240 C
0,3000 C
0,4440 C
0,6240 C
0,6760 C
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebanyak 6,84 gram sukrosa (Mr = 342 gram /mol) dilarutkan dalam air sampai volume larutan 100 mL pada suhu 270 C. Jika diketahui R = 0,082 L atm mol-1 K-1 tekanan osmotik larutan diatas adalah...
0,092 atm
0,984 atm
4,92 atm
6,15 atm
9,84 atm
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebanyak 60 gram urea (Mr=60) dilarutkan dalam 72 gram air (Mr=18). Jika tekanan uap pelarut murni pada 200 C adalah 22,50 mmHg, tekanan uap larutan pada suhu itu adalah...
4,50 mmHg
9,00 mmHg
18,00 mmHg
22,50 mmHg
29,00 mmHg
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