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Iustina14
a fost răspuns

Masele moleculare :
H3PO4
H2SO4
Ba(OH)2
Fe2(SO4)3
Al(NO3)3

Răspuns :

Gabigabrielagdh
H3PO4=1×3+31+16×4=3+31+64=98 u.a.m
H2SO4=1×2+32+16×4=2+32+64=98 u.a.m
Ba(OH)2=137+16+1×2=153+2=155 u.a.m
Fe2(SO4)3=56×2+32+16×4×3=112+32+64×3=192+144=336 u.a.m
Al(NO3)3=27+14+16×3×3=144+41=185u.u.a.m

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