Mr(SO2) = 32 + 2*16 = 64
массовая доля (O) = 32/64 *100% = 50%
w (O) = Ar (O) * n/ Mr (SO2) * 100%
w (O) = 16 * 2 / 64 * 100% = 50%
Mr(SO2) = 32 + 2*16 = 64
массовая доля (O) = 32/64 *100% = 50%
w (O) = Ar (O) * n/ Mr (SO2) * 100%
w (O) = 16 * 2 / 64 * 100% = 50%