Question

what is a mass of :
a] 0.2 moles of oxygen atoms?
b]0.5 moles of water molecules?

Answer 1

a) 3.2 gram

b) 9 gram

hope it helps you

Answer 2

☺ Hello mate__ ❤

◾◾here is your answer...

Approach to solving Question :- first we calculate mass of 1 mole. After this multiplying this by given no. Of mole.

(a) Mass of one mole of oxygen atoms = 16g Then, mass of 0.2 mole of oxygen atoms

= 0.2 × 16g = 3.2g

(b)Mass of one mole of water molecule = 18g Then, mass of 0.5 mole of water molecules

= 0.5 × 18g = 9g

I hope, this will help you.

Thank you______❤

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