mr(c3h8o3)=92
n(c3h8o3)=m/mr=184÷92=2моль
n(c3h8o3)=n(c3h5o3(no2)3)=2моль
mr(c3h5o3(no2)3)=227
m(c3h5o3(no2)3)=n×mr=2×227=454гр
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mr(c3h8o3)=92
n(c3h8o3)=m/mr=184÷92=2моль
n(c3h8o3)=n(c3h5o3(no2)3)=2моль
mr(c3h5o3(no2)3)=227
m(c3h5o3(no2)3)=n×mr=2×227=454гр