
Postes Konsep Mol
Quiz
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Chemistry
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University
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Practice Problem
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Medium
Mar'attus Solihah
Used 13+ times
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6 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Suatu neraca analitik dapat mendeteksi massa sampai 0,1 mg. Berapa jumlah total ion dalam kuantitas terkecil yang terdeteksi dari MgCl2
2 x 10 17 ion
2 x 10 18 ion
3 x 10 18 ion
2 x 10 19 ion
3 x 10 19 ion
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Massa molekul dan massa molar adalah dua hal yang berbeda
Benar
Salah
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Satu mol senyawa adalah banyaknya senyawa yang mengandung unit rumus atau molekul sejumlah bilangan avogadro (6,02214 x 1024)
Benar
Salah
4.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Manakah kuantitas berikut ini yang memiliki massa lebih besar? (Mr O2 = 18, Cu = 63,5)
0,5 mol O2
2,0 x 1023 atom Cu
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Dalam heksaklorofena (C13H6Cl6O2), suatu senyawa yang digunakan dalam sabun germisida, unsur apa yang menyumbang massa terbesar?
unsur C
unsur H
unsur Cl
unsur O
6.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Melalui spektroskopi massa diketahui massa molekul vitamin C adalah 176 u. Rumus empiris dari vitamin C adalah C3H4O3 . Berdasarkan informasi tersebut rumus molekul yang benar dari vitamin C adalah...
C3H4O3
C4H5O4
C6H8O6
C8H10O6
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