SIFAT KOLIGATIF LARUTAN KLS XII IPA1
Quiz
•
Chemistry
•
12th Grade
•
Practice Problem
•
Hard
JK LAMDA
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Fraksi mol etanol (Mr 46)dalam larutan air mengandung 69% etanol adalah ….
0,47
0,45
0,44
0,48
0,5
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Fraksi mol larutan metanol (CH3OH) dalam air adalah
0,5. Kadar metanol dalam larutan itu adalah ......% (w/w)
0,64
0,49
0,60
0,70
0,76
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Sebanyak X g C2H6O2 (Mr =62) dilarutkan ke dalam 468 g air (Mr =18) sehingga tekanan uap jenuh larutan
pada suhu 30°C = 28,62 mmHg. Jika pada suhu itu
tekanan uap air murni 31,8 mmHg, harga X adalah …. gr
179
90
160
120
190
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tekanan uap jenuh air pada 100°C adalah 760 mmHg.
Jika18 g glukosa (Mr = 180) dilarutkan dalam 90 gramair (Mr
=18), pada suhu tersebut tekanan uap larutan adalah ….mmHg
745,1
757,2
775,2
754,1
757,5
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kemolalan larutan yang dibuat dari 0,1 mol NaOH (Mr 40)
dalam 500 g air adalah…..m
0,2
0,3
0,4
0,5
0,52
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Peristiwa berkurangnya tekanan uap larutan terjadi
akibat ….
adanya zat terlarut yang mudah menguap
adanya zat terlarut yang sukar menguap
adanya komponen pelarut dalam fasa uap
pelarut dan zat terlarut yang tidak bercampur
penurunan gaya tarik antarmolekul
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Larutan yang mempunyai titik beku paling rendah
(diketahui molalitas larutan sama = 0,10 molal) adalah ....
C12H22O11
CuSO4
C6H12O6
NiCl2
NH4NO3
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