Larutan fruktosa dengan konsentrasi 1,476 M mempunyai massa jenis 1,2 g/ml. Berapa kemolala larutan adalah …. (Mr fruktosa = 180)
SIFAT KOLIGATIF LARUTAN

Quiz
•
Chemistry
•
Vocational training
•
Medium
Husnaeni Husnaeni
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
10 mins • 10 pts
1,75 mol/kg
1,87 mol/kg
1,77 mol/kg
1,85 mol/kg
1,90 mol/kg
2.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Fraksi mol larutan methanol CH3OH dalam air adalah 0,50. Kosentrasi methanol dalam arutanini dinyataan dalam persen berat methanol adalah …. Ar C = 12, O = 16, H =1
64 %
54%
63%
62%
60%
3.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Jika didalam suatu larutan yang dibuat dengan melarutkan 4,5 gram glukosa (C6H12O6) dalam 100 gram air,kemolalanya adalah …. (Ar C = 12, H =1, O = 16)
0,25 molal
0,4 molal
0,3 molal
0,5 molal
0,43 molal
4.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Jika didalam zat terlarut dan zat pelarut ada 200 gram air dan dilarutkan 30 gram asam cuka (CH3COOH) fraksi molnya zat terlarut adalah (Ar C = 12, H= 1, O = 16) ….
0,943
0,957
0,987
0,945
0,975
5.
MULTIPLE CHOICE QUESTION
10 mins • 10 pts
Sebanyak 11,7 gram NaCl (Mr = 58,5) dilarutkan dalam 500 gram air. Titik didih larutan adalah …. (Kb air = 0,52oC/m)
100,420C
98,90C
50,890C
1000,540C
65,780C
6.
MULTIPLE CHOICE QUESTION
10 mins • 10 pts
Pada suhu 270C, glukosa C6H12O6 (Mr = 180) sebanyak 8,5 gram dilarutkan dalam air sampai volumenya 500 ml R= 0,082 L atm mol-1 K-1. Tekanan osmosis larutan yang terjadi sebesar ….
2,3546 atm
2,3344 atm
2,3123 atm
2,3024 atm
2,3124 atm
7.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Dalam penurunan tekanan uap ) semakin tinggi temperatur maka ….
Sama dengan tekanan uap zat cair
Semakin rendah tekana uap zat cair
Semakin besar tekanan uap zat cair
Tekanan uap tidak berpengaruh
idak ada tekanan uapnya
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