Question

Calculate the molecular masses of ZnO and K2CO3, at mass of hydrogen = 1u, oxygen = 16 u,

and carbon = 12 u​

Answer 1

Answer:

What would you like to ask?

CHEMISTRY

Calculate the formula unit masses of ZnO,Na

2

O,K

2

CO

3

.

(atomic masses of Zn=65u,Na=23u,K=39u,C=12u and O=16u)

Share

Study later

ANSWER

Formula unit mass of ZnO=(Atomic mass of Zn)+(Atomic mass of O)

=(65+16)u =81u

Formula unit mass of Na

2

O=(2×23)+16

=62u

Formula unit mass of K

2

CO

3

=(2×39)+12+(3×16)

=138u