Konsep Mol
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
•
Medium
Andi Fahri
Used 4+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Jumlah atom yang terdapat dalam rumus kimia: C2H4O2 adalah....
6
8
10
12
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Berapa banyak total atom yang ada dalam rumus kimia: Na2(SO4)3.2H2O
23
20
24
21
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Unsur tembaga di alam terdiri atas 2 isotop, yaitu Li-6 dan Li-8. Bila % kelimpahan isotop Li-6 adalah 20%, tentukan massa rata-rata Li di alam!
7,0
7,2
7,5
7,6
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Mr dari rumus kimia Mg(NO3)2 adalah....
(Ar N = 14; O = 16; Mg = 24)
144
146
148
150
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
JIka diketahui Ar O = 16; Mn = 25; S = 32, maka Mr dari senyawa: Mn2(SO4)3
300
325
338
340
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Berapa molekul yang terdapat dalam 0,04 mol air?
24,08 x 1021 molekul
2,408 x 1021 molekul
12,04 x 1021 molekul
1,204 x 1021 molekul
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Tentukan jumlah mol yang terdapat dalam 18,06 x 1020 molekul karbon dioksida
3 x 103
3 x 10-3
3 x 102
3 x 10-2
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