Question

1) Calcule a massa molecular: Dados: N=14;H=1;O=16;Al=27;S=32;C=12;Ca=40;P=31 a) NH 4 NO 3
b) Al 2 (SO4) 3
c) C 12 H 22 O 11
d) Ca 3 (PO 4 ) 2
e) Al 2 (CO 3 ) 3

Answer 1

Resposta:

Explicação:

a) NH4NO3 = 1 x 14 + 4 x 1 + 1 x 14 + 3 x 16 = 80 g/mol

b) Al2(SO4)3 = 2 x 27 + 3 x 32 + 12 x 16 = 342 g/mol

c) C12H22O11 = 12 x 12 + 22 x 1 + 11 x 16 = 342 g/mol

d) Ca3(PO4)2 = 3 x 40 + 2 x 31 + 8 x 16 = 310 g/mol

e) Al2(CO3)3 = 2 x 27 + 3 x 12 + 9 x 16 = 234 g/mol