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Konsep Mol

Authored by Andi Fahri

Chemistry

11th Grade

Used 5+ times

Konsep Mol
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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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