
BAB 3 : BILANGAN MOL, FORMULA KIMIA DAN PERSAMAAN KIMIA
Quiz
•
Chemistry
•
12th Grade
•
Medium
SITI NOR AISHAH BINTI ABDULLAH KPM-Guru
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64 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Persamaan kimia berikut menunjukkan Proses Haber.
Pengusaha kilang ingin menyediakan 8.5 kg ammonia, berapakah jisim nitrogen yang diperlukan?
[JAR : H=1 ; N=14]
1.4 kg
5.0 kg
6.9 kg
7.0 kg
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Aluminium karbonat terurai apabila dipanaskan dengan kuat untuk menghasilkan aluminium oksida dan karbon dioksida.
Berapakah isipadu maksimum gas yang boleh diperolehi pada suhu bilik apabila 2.34g aluminium karbonat dipanaskan?
[Jisim molar Al2(CO3)3 = 234 gmol-1 : Isipadu molar gas pada suhu bilik = 24 dm3mol-1]
0.72 dm3
2.40 dm3
24.0 dm3
72.0 dm3
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Formula empirik bagi suatu hidrokarbon ialah CH2. Apakah formula molekul bagi hidrokarbon itu?
[JAR : C=12 , H=1 ; Jisim molar hidrokarbon = 56 gmol-1]
C4H8
C4H10
C2H4
C2H6
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Rajah menunjukkan perwakilan piawai bagi atom Q dan atom R.
Antara sebatian kimia berikut, manakah yang boleh membentuk sebatian yang mempunyai formula kimia yang sama dengan atom Q dan atom R?
Aluminium klorida
Magnesium oksida
Ferum (II) bromida
Kalsium klorida
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Antara berikut yang manakah mempunyai isipadu terbesar pada keadaan bilik?
[JAR : H=1, C=12, N=14, O=16 ; Isipadu molar pada keadaan bilik = 24 dm3mol-1]
42g karbon monoksida, CO
23g nitrogen dioksida, NO2
17g ammonia, NH3
12g wap air,H2O
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Rajah menunjukkan langkah-langkah yang dijalankan untuk mengkaji sifat kimia unsur Kumpulan 1.
Apakah isipadu gas oksigen yang diperlukan untuk bertindak balas lengkap dalam tindak balas ini?
[Isipadu molar gas pada keadaan bilik = 24 dm3mol-1]
1.2 dm3
2.2 dm3
2.4 dm3
4.8 dm3
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Penguraian kalium klorat (V),KClO3 oleh haba menghasilkan kalium klorida dan gas oksigen. Kaedah ini selalu digunakan untuk menghasilkan gas oksigen di dalam makmal. Andaikan anda ialah seorang pembantu makmal. Berapakah jisim klorat (V), KClO3 yang diperlukan untuk menghasilkan 48000 cm3 gas oksigen pada keadaan bilik?
[JAR : O=16, Cl=35.5, K=39 ; Isipadu molar = 24 dm3mol-1]
2000.000g
666.670g
245.000g
162.925g
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