Jisim Atom Relatif dan Jisim Molekul Relatif
Quiz
•
Chemistry, Science
•
12th Grade - University
•
Practice Problem
•
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Zul Adlan
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jisim atom relatif adalah berdasarkan kepada skala
Karbon-12
Karbon-13
Karbon-15
Karbon-10
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pengiraan jisim molekul relatif?
Membahagikan jisim atom relatif semua atom unsur-unsur yang membentuk molekul tersebut
Menolakkan jisim atom relatif semua atom unsur-unsur yang membentuk molekul tersebut
Menambahkan jisim atom relatif semua atom unsur-unsur yang membentuk molekul tersebut
Mendarabkan jisim atom relatif semua atom unsur-unsur yang membentuk molekul tersebut
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Hitungkan jisim molekul relatif bagi gas metana (CH4).
(Jisim atom relatif H: 1, C:12)
48
8
5
16
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Hitungkan jisim molekul relatif bagi gas nitrogena (N2).
(Jisim atom relatif N:14)
26
28
48
14
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Tentukan jisim atom relatif bagi unsur yang bergaris jika jisim molekul relatif bagi unsur tersebut adalah 136.
ZnCl2.
(Jisim atom relatif Cl: 35.5)
65
75
56
76
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tentukan jisim atom relatif bagi unsur yang bergaris jika jisim molekul relatif bagi unsur tersebut adalah 17.
NH3.
(Jisim atom relatif H: 1)
12
13
14
11
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Berikut merupakan sebab mengapa Karbon-12 dipilih sebagai piawai kecuali:
Banyaknya isotop suatu unsur Karbon-12 adalah hampir 99% dan ia mudah diperolehi
Karbon tidak boleh diperolehi dengan membakar bahan-bahan organik dengan bekalan oksigen yang terhad
Karbon adalah berbentuk pepejal pada suhu bilik
Karbon hadir dalam pelbagai bahan organik, iaitu, kayu, gas asli dan petroleum.
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