Chemistry
Grade-9
Easy
Question
The compound containing 50% of ‘A’(at.mass=10amu) and 50% of ‘B’ (at.mass=20amu), what is the simplest formula that could be formed?
- AB
- A2B
- AB2
- A2B3
Hint:
The atomic mass of A is half that of B.
The correct answer is: A2B3
The compound containing 50% of ‘A’(at.mass=10amu) and 50% of ‘B’ (at.mass=20amu).
Element
%(a)
At. wt.(b)
(a/b)
Ratio
A
50
10
5
2
B
50
20
2.5
1
The simplest formula that could be formed is A2B.
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