Объяснение:
Ba(+2)N(+5)O(-2)
Mr(Ba(NO3)2 = 137 + 14*2 + 16*6=261
W(Ba) = Ar(Ba) *n / Mr(Ba(NO3)2) *100% = 137*1 / 261 *100% =52%
W(N) = Ar(N) *n / Mr(Ba(NO3)2) *100% = 14*2 / 261 *100% =11%
W(O) = Ar(O) *n / Mr(Ba(NO3)2) *100% = 16*6 / 261 *100% =37%
Объяснение:
Ba(+2)N(+5)O(-2)
Mr(Ba(NO3)2 = 137 + 14*2 + 16*6=261
W(Ba) = Ar(Ba) *n / Mr(Ba(NO3)2) *100% = 137*1 / 261 *100% =52%
W(N) = Ar(N) *n / Mr(Ba(NO3)2) *100% = 14*2 / 261 *100% =11%
W(O) = Ar(O) *n / Mr(Ba(NO3)2) *100% = 16*6 / 261 *100% =37%