Объяснение:
Mr((CuOH)2CO3) =64 *2 + 16*2 + 1*2 + 12 + 16*3 =222
W(Cu) = Ar(Cu) *n / Mr((CuOH)2CO3) *100% = 64*2 / 222 *100% =58%
W(O) = Ar(O) *n / Mr((CuOH)2CO3) *100% = 16*5 / 222 *100% = 36%
W(H) = Ar(H) *n / Mr((CuOH)2CO3) *100% = 1*2 / 222 *100% =1%
W(C) = Ar(C) *n / Mr((CuOH)2CO3) *100% = 12*1 / 222 *100% =5%
