Question

as vrea repede ex va roggg!
ex este.
Calculati masele moleculare pentru compusii de mai jos .Folositi masele atomice din anexa.​

Answer 1

MH2O=2+16=18

MNH3=14+3=17

MK2O=2.39 +94

MNaOH =23+6+1=40

MCa(OH)2=40+2.16 +2=74

MCaCO3=40+12+3.16=100

MNaNO3=23+14+3.16=85

MK2SO4=2.39 +32 +4.16=174

MCa(NO3)2=40+2.14 +6.16=164

MH2SO4=2+32+4.16=98

MAl2O3=2.27 +3.16=102

M Al(OH)3=27 +3.16 + 3=78

MNa3PO4=3.23 +31 + 4.16=164

MCa3(PO4)2=3.40+2.31 +8.16=310

M(NH4)2 SO4=2.14 +8 +32+4.16=132