Объяснение:
Mr(SO3) = 32+16*3=80
W(S) = Ar(S) *n / Mr(SO3) *100% = 32*1 / 80 *100% =40%
W(O) = Ar(O) *n / Mr(SO3) *100% = 16*3 / 80 *100% =60%
Объяснение:
Mr(SO3) = 32+16*3=80
W(S) = Ar(S) *n / Mr(SO3) *100% = 32*1 / 80 *100% =40%
W(O) = Ar(O) *n / Mr(SO3) *100% = 16*3 / 80 *100% =60%