Question

1. Determine as massas moleculares das substâncias abaixo:
a) N2
b) CO2
c) HNO3
d) H2SO4
e) C6H12O6
f) Ca(OH)2
g) Ca(ClO3)2
h) (NH4)2SO4
i) Ca3(PO4)2
j) Al(OH)3

Answer 1

Resposta

440

4.5

A) N2 = 2.14 = 28

B) CO2 = 1.12 +2.16 = 12 + 32 = 44

C) HNO3 = 1.1 + 1.14 + 3.16 = 1+14+48 = 63

D) H2SO4 = 2.1+1.32 + 4.16 = 2+32+64 = 98

E) C6H12O6 = 6.12 + 12.1+6.16 = 72+12+96 = 180

F) Ca(OH)2 = 1.40+ 2.16+ 2.1 = 40+32+2 = 74

G) Ca(CIO3)2 = 1.40+ 2.35,5 + 6.16 = 40+71+96

207

H) (NH4)2SO4 = 2.14+ 8.1 +1.32 + 4.16 =

28+8+32+64 = 132

I) Ca3(PO4)2 = 3.40 +2.31 + 8.16 = 120 +62 + 128 = 310

J) AI(OH)3 = 1.27 +3.16 +3.1 = 27 +48 +3 = 78

Bons estudos :)