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Science CBSE Homework Assignments
Class 9
Atoms and molecules
Molecular mass
1.
Calculate the number of particles
Task:
2
m.
1.
The number of iodine atoms present in 50 mL of a 0.1 M KI solution is
\(6\) x \(10^2{^3}\)
\(10\) x \(10^2{^3}\)
\(6\) x \(10^2{^2}\)
\(3\) x \(10^2{^1}\)
2.
Calculate the number of particles in 8g of \(O_2\) molecules
\(1.32\) x \(10^2{^3}\)
\(1.41\) x \(10^2{^3}\)
\(1.61\) x \(10^2{^3}\)
\(1.51\) x \(10^2{^3}\)
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