Question

Calculati masa moleculara,molul si hilomolul penteu O2,Al2,S3 Mg(OH3),Al2(So4)3.
va rog mult ​mai am putin si plâng.
dacă no fac iau 4

Answer 1

masa moleculara:

O2

A(O) = 16

M(O2) = 2x16 = 32 g/mol

Al2S3:

A(Al) = 27, A(S) = 32

M(Al2S3) = 2x27+3x32 = 150 g/mol

Mg(OH)3

A(Mg) = 24, A(O) = 16, A(H) = 1

M(Mg(OH)3) = 24+(16+1)x3 = 75 g/mol

Al2(SO4)3

A(Al) = 27, A(S) = 32, A(O) = 16

M(Al2(SO4)3) = 2x27+(32+4x16)x3 = 150 g/mol

molul:

1 mol O2 = 32 g

1 mol Al2S3 = 150 g

1 mol Mg(OH)3 = 75 g

1 mol Al2(SO4)3 = 150 g

kilomolul

1 Kmol O2 = 32 Kg

1 Kmol Al2S3 = 150 Kg

1 Kmol Mg(OH)3 = 75 Kg

1 Kmol Al2(SO4)3 = 150 Kg