Question

how many moles are present in?
(a) 6.02 X 10^22 molecules of water
(b) 1204 X 10^26 molecules of Co2


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Answer 1

Answer:

A 0.1 b 1000

Explanation:

As 1 mole=6.022x10^23 particles

So 6.022x10 ^23 molecules =1 mole

1 molecule =1/6.022x10 ^23mole

6.022x10 ^22 molecules =1/6.022x10 ^23 x 6.022x10 ^22=1/10=0.1 mole

And b 6.022x10 ^26 molecules =1/6.022x10 ^23 x 6.022x10 ^26=10^3=1000moles

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