Question

Calcule a massa molecular:

Dados das massas: 

H= 1u O= 16u Na= 23u Ca= 40u N= 14u C=12u


a)H2

b)O2 

c)N2

d)NaOH

e)CaO

f)Ca(OH)2

g)NH3

h)CO2

​

Answer 1

Resposta:

a 1+1=2

b 16+16= 32

c 23+23=46

d 23+16+1=40

e 40+16=56

f 40+(16+1)×2=97

g 14+1×3=17

h 12+16×2=44