Question

No. Of electrons in 10g of carbonate ion

Answer 1

Answer:

32.1066×10^23 electrons

Explanation:

atomic number =nof protons =no of electrons

CO3^-2

6+3×8=30

30+2=32 since -2 represents gain of 2 more electron in the atom

in 10g co3 ion

we have molar mass= 60g/mol

no of moles 10/60=1/6mole

no of electrons in one co3^-2 atom is 32

so in 1/6 mole =1/6×6.02×10^23×32=32.1066×10^23electrons