Question

what is the mass of 3.011 x 10 power 23 atoms of oxygen​

Answer 1

Explanation:

let mass of oxygen be x, no. of atoms=

3.011*10^23,molar mass of oxygen =16

we know that,

no. of

atoms=given mass/molar mass*6.022*10^23

3.011*10^23=x/16*6.022*10^23

3.011*10^23 =6.022*10^23*x/16

x=16*3.011*10^23/6.02210^23

=16*1/2

=8

therefore mass of oxygen is 8g

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