PTS KIMIA KELAS XII SMAN 1 GENTENG

Quiz
•
Chemistry
•
12th Grade
•
Hard
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25 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Molalitas yang terjadi bila 24 gram kristal MgSO4 dilarutkan dalam 400 gram air adalah......... (Mr MgSO4 = 120)
50 m
5 m
0,5 m
0,05 m
0,0005 m
2.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
Molaritas larutan yang dibuat dari 2 gram kristal NaOH yang dilarutkan ke dalam air hingga volumenya 500 mL adalah...(Ar Na = 23; Ar O = 16; Ar H = 1)
0,1 M
0,2 M
0,3 M
0,4 M
0,5 M
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Suatu larutan terdiri dari campuran 60 gram CO(NH2)2 dan 72 gram air. Fraksi mol urea pada larutan tersebut adalah...(Ar C = 12; Ar O = 16; Ar N = 14; Ar H = 1)
0,1
0,2
0,3
0,4
0,5
4.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
Suatu larutan glukosa (Mr = 180) dalam 100 gram air (Kb = 0,52oC/molal) mendidih pada 100,65 oC. Massa glukosa yang dilarutkan adalah...
5,6 gr
11,2 gr
22,5 gr
45,0 gr
67,5 gr
5.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
Larutan berikut yang memiliki fraksi mol terkecil adalah....
CH4N2O 10% (Mr = 60)
C6H12O6 10% (Mr = 180)
MgCl2 20% (Mr = 95)
NaCl 10% (Mr = 58,5)
NaOH 20% (Mr = 40)
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Sebanyak 12,2 gram asam benzoat (Mr=122) dilarutkan dalam 244 gram etanol. besar kenaikan titik didih etanol jika tetapan kenaikan titik dadah etanol 1,220C/m adalah ....
0,50C
10C
20C
30C
40C
7.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Perhatikan gambar partikel zat terlarut dan pelarut diatas, tekanan uap larutan paling besar terdapat pada wadah ....
(1)
(2)
(3)
(4)
(5)
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