M.r. ( С7H5N3O6) = 84 +5 +42 +96 = 230 г/моль
W(C) (С7H5N3O6) = (84/230) x 100% = 37 %
W(H) (С7H5N3O6) = (5/230) x 100% = 2 %
W(N) (С7H5N3O6) = (42/230) x 100% = 18 %
W(O) (С7H5N3O6) = ( 96/230) x 100% = 43 %
M.r. ( С7H5N3O6) = 84 +5 +42 +96 = 230 г/моль
W(C) (С7H5N3O6) = (84/230) x 100% = 37 %
W(H) (С7H5N3O6) = (5/230) x 100% = 2 %
W(N) (С7H5N3O6) = (42/230) x 100% = 18 %
W(O) (С7H5N3O6) = ( 96/230) x 100% = 43 %