Question

4. Calculati masa moleculara pentru NaOH, H₂SO4, Mg(OH)2, H₂O Se dau masele atomice: AME=24, AH = 1, ANa= 23, A, = 16, A, = 32.​

Answer 1

Răspuns:

MNaOH=23+16+1=40g/mol

MH2SO4 =2×1+32+4×16=98g/mol

MMg(OH)2=24+2×16+2×1=58g/mol

MH2O =2×1+16=18g/mol