UH Sifat Koligatif Larutan
Quiz
•
Chemistry
•
12th Grade
•
Hard
Eka Martya
Used 144+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Derajat ionisasi larutan elektrolit terner (MgCl2) tersebut adalah ….
0,40
0,50
0,80
0,90
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Dalam satu gelas larutan oralit terdapat 11,7 gram NaCl (garam), 13,5 gram C6H12O6 (glukosa) dan 180 gram H2O (air). Fraksi mol garam dalam larutan tersebut adalah …. (Ar Na = 23; Cl = 35,5; O = 16; C = 12; H = 1)
0,0073
0,0195
0,02
0,0382
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Tekanan uap air jenuh pada suhu 29 °C adalah 30 mmHg. Pada suhu yang sama, dibuat larutan NaOH dengan melarutkan 4 gram NaOH dengan 90 gram air, jika NaOH terionisasi sempurna, maka tentukan tekanan uap larutan NaOH! (Ar Na= 23, O = 16, H=1)
29,41 atm
28,85 atm
1,15 atm
0,59 atm
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Larutan yang isotonis dengan NaCl 0,3 M adalah ....
Na2SO4 0,3 M
KNO3 0,2 M
urea 0,1 M
glukosa 0,6 M
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Pada pembuatan sirup, kekentalan diukur dengan mengamati titik didihnya. Penelitian menunjukkan bahwa sirup yang baik harus mendidih pada suhu 104 °C (Kb air = 0,5 °C/m). Jika sirop itu memakai gula pentosa (Mr =150), maka persentase gula dalam setiap pembuatan 1 kg sirup adalah ....
60%
50%
45%
30%
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Dari diagram P-T larutan NaCl dan pelarut (H2O) tersebut, jika Kb = 0,52 dan Kf = 1,86 dan larutan terionisasi sempurna, maka larutan tersebut akan membeku pada suhu ...
1,86oC
0,93oC
– 0,93oC
– 1,86oC
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Pernyataan yang tepat berkaitan dengan pelarut murni adalah ....
titik beku lebih rendah daripada larutannya
tekanan osmotik lebih besar daripada larutannya
tekanan uap jenuh lebih tinggi daripada larutannya
titik didih lebih tinggi daripada larutannya
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