1.oblicz masę cząsteczkową soli a) CuCO3 b) Ni(NO3)2 c) (NH4)3PO4

a) m CuCO₃ = 64u+12u+3×16u = 76u+48u = 124u b) m Ni(NO₃)₂ = 59u+2×14u+6×16u = 59u+28u+96u = 183u c) m (NH₄)₃PO₄ = 3×14u+12×1u+31u+4×16u = 42u+12u+31u+64u = =149u

a) CuCO3 M CuCO3= 64g+12g+3*16g= 124g/mol b) Ni(NO3)2 M Ni(NO3)2= 59g+2*14g+6*16= 183g/mol c) (NH4)3PO4 M (NH4)3PO4= 3*14g+12*1g+31g+4*16g= 149g/mol