Question

iii) Number of molecules present in 90 g of water is
a) 5
b) 6.022 x 10"
c) 3.011 x 10"
d) 30.11 x 10"​

Answer 1

Answer:

Explanation:

30.11 x 10''

is the answer

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Answer 2

Answer:

no. of molecules= no. of moles *6.02*10^23

no. of moles= 90/18

=5

no. of molecules= 5*6.02*10^23

30.1*10^23