Question

Calculate the formula unit masses of ZnO, Na2O, K2CO3, given atomic masses

of Zn = 65u,

Na = 23 u, K=39u, C = 12u, and O=16u.​

Answer 1

Answer:

atomic mass of zno = 65u+16u = 81u

atomic mass of Na2o = 2×23u + 16u =46u + 16u

= 62u

k2co3= 2×39u+12u+3×16u

=78u+12u+48u

138u