Oblicz mase cząsteczkową soli a) CuCO₃ b) Ni(NO₃)₂ c) (NH₄)₃PO₄

mCuCO3= 63u+12u+(16*3)=123u mNi(NO₃)₂=59u +(14*2) +(16*6)=183u m (NH₄)₃PO₄ = (14*3)+(1*12)+31u+(16*4)=149u

a) CuCO₃ Cu- 64u C- 12u O - 16u CuCO₃ = 64u + 12u + 3*16u = 64u + 12u + 48u = 124u b) Ni(NO₃)₂ Ni - 59u N- 14u O- 16u Ni(NO₃)₂ = 59u + 2*14u + 6*16u = 59u + 28u + 96u = 183u c) (NH₄)₃PO₄ N - 14u H - 1u P - 31u O - 16u (NH₄)₃PO₄ = 3*14u + 12*1u + 31u + 4*16u = 42u + 12u +31u + 64u = 149u