Question

calcule a massa das substancias abaixo conforme os exemplos , consultando as massas atomicas na tabela periodica , demonstre todos os calculos realizados​

Answer 1

Resposta:

a) Al2(SO4)3

Al=27×2=54

S=32×3=96

O=16×12=192

total=342

b) Ca(OH)2

Ca=40×1=40

O=16×2=32

H=1×2=2

total=74

c) NaNO3

Na=23×1=23

N=14×1=14

O=16×3=48

total=85

d) C6H12O6

C=12×6=72

H=1×12=12

O=16×6=96

total=180

e) Fe2(P2O7)2

Fe=56×2=112

P=31×4=124

O=16×14=224

total=460

f) Ca4[Fe(CN)6]3

Ca=40×4=160

Fe=56×3=168

C=12×18=216

N=14×18=252

total=796