Question

calculate formula unit mass of ZnO,Na2O and K2CO3
(atomic masses of Zn=65u, Na=23u, K=39u,C=12u, O=16u , Al=27u)


answer it fastt

Answer 1

ZnO=65u+16u=81u
Na2O=2(23)+16=62u
K2CO3=2(39)+12+3(16)=138U

Answer 2

ZnO= 65u+16u
       =81u

Na2O=(23u*2)+16u
         =46u+16u
         =62u

K2CO3=(39u*2)+12u+(16u*3)
            =78u+12u+48u
            =138u