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Authored by Maria Solva
Chemistry
12th Grade - University
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35 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Molaritas larutan HCl 1 molal dengan ρ= 1,25 gram/mL ( Mr =36,5) adalah…
2,4
2,0
1,8
1,4
1,2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pernyataan yang tepat mengenai sifat koligatif larutan adalah….
Tekanan osmosis bukan sifat koligatif larutan
Sifat koligatif larutan tergantung pada jenis zat terlarut
Sifat koligatif larutan bergantung pada jumlah partikel zat terlaurut
Salah satu sifat koligatif larutan adalah penurunan titik didih larutan
Penurunan tekanan uap merupakan sifat koligatif yang tergantung pada jenis zat
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Perhatikan beberapa gambaran molekuler partikel tak sebenarnya antara zat terlarut dan zat pelarut dalam suatu larutan seperti pada gambar di atas. Larutan yang mempunyai tekanan uap paling besar adalah gambar nomor ....
(1)
(2)
(3)
(4)
(5)
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Fraksi mol air dalam suatu larutan pada suhu 20oC dengan tekanan uap jenuh air 24 mmHg adalah 0,4 maka pada suhu tersebut akan terjadi penurunan tekanan uap sebesar….
4,8 mmHg
10,6 mmHg
12,6 mmHg
14,4 mmHg
16,4 mmHg
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Jika tekanan uap jenuh air pada suhu 250C adalah 23 mmHg maka tekanan uap jenuh untuk larutan urea 10 % massa pada suhu yang sama adalah…. (Mr urea=60, Mr air = 18)
(23x 0,17) : 5,17 mmHg
(23x 5,17) : 5 mmHg
(23 x 5) : 5,17 mmHg
(23 x 5,7) : 5,17 mmHg
(23 x 5,17) : 5,17 mmHg
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Pada kosentrasi yang sama, larutan di bawah ini yang diprediksi mempunyai titik didih paling tinggi terdapat pada larutan…
C6H12O6
CO(NH2)2
Ba(OH)2
NaCl
HCl
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Jika Kenaikan titik didih 1 molal larutan urea 0,52 0C. Pada konsentrasi yang sama kenaikan titik didih untuk larutan NaCl (α = 1) adalah…
1,04 oC
1,28 oC
1,56 oC
2,08 oC
3,72 oC
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