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BAB 3 TINGKATAN 4 KIMIA KSSM

Authored by Asze Norelya Abdul

Chemistry

11th Grade

Used 9+ times

BAB 3 TINGKATAN 4 KIMIA KSSM
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Jisim molekul relatif bagi Klorin, Cl2?

JAR Cl = 35.5

71

35.5

2

Answer explanation

Cl2 = (2 x 35.5) = 71

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Jisim molekul relatif bagi Asid etanoik, C3H7OH

JAR= C: 12 H: 1 O: 16

59

62

60

Answer explanation

C3H7OH = (3x12) + (7x1) + (1x16) + (1x1)

= 60

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Hitung jisim formula relatif bagi sebation ion:

JAR = Fe: 56 S: 32 O: 16 H: 1

Ferum(II) sulfat heptahidrat, FeSO4 . 7H2O

228

288

300

278

Answer explanation

Ferum(II) sulfat heptahidrat, FeSO4 . 7H2O

= (1x56) + (1x32) + (4x16) + 7 ((2x1) + (1x16))

= 278

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Hitung bilangan atom hidrogen, H dalam 0.8 mol air, H2O?

JAR: H: 1 O: 16

9.232 x 1022 atom

4.816 x 1023 atom

9.553 x 1023 atom

9.632 x 1023 atom

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Satu sampel mengandungi 2.0 mol gas etana, C2H6.

Berapakah bilangan molekul etana, C2H6 dalam sampel?

JAR: C: 12 H: 1

2.224 x 1024 molekul

1.204 x 1024 molekul

3.015 x 1023 molekul

Answer explanation

Bil. mol x Pemalar Avogadro = Bil. zarah

2.0 mol x (6.02 x 1023) = 1.204 x 1024 molekul

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Jisim molar ialah

Jisim satu gram bahan

Jisim satu bahan

Jisim satu mol bahan

Jisim

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

0.25 mol bahan X mempunyai jisim 5.5 g. Cari jisim molar X.

26 g

2.0 g

2 g

22 g

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