Question

calculate the number of electron proton neutron in 3 gram of co3​

Answer 1

Explanation:

Firstly calculate no. of molecules....

no. of moles =3/60= 0.05

now no. of molecules = 0.05xNA

CO3

no. of e-= total at.no.

= 6+8x3

= 30

no. of e-=no. of protons

so no. of protons are also 30

and no. of neutrons are...

=atomic mass- atomic no.

=60-30=30

now

total no. of protons = 30x0.05xNA

total no. of neutrons=30x0.05xNA

total no. of e-=30x0.05xNA

and value of NA=6.022x10^23

so this molecule contain equal no. of protons, electrons and neutrons.

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