A tank contains 1800 kg of 12% saline solution of ammonium nitrate (NH4NO3).

The tank receives two continuous streams of solution of the same salt at different concentrations, as shown in the diagram.

After a considerable time, both streams were closed and the density of the resulting solution was 1.1161g/cm3. If the entire process was carried out at 77 F, calculate,

a) The time (hours) that elapsed, from the time there were 1800 kg of solution, until the taps of the streams were closed. the taps of the streams were closed.

b) The amount (kg) of total salt dissolved in the final solution.

TABLE 2-39 Ammonium Nitrate (NH,NO.) 0C 10C 25C 40C 1.0 1.0043 1.0039 1.0011 0.9961 2.0 1.008S 1.0052 1.0051 1.0000 4.0 1.0178 1.0168 1.0132 1.0079 8.0 1.0359 1.0340 1.0297 1.0238 12.0 1.0539 10515 1.0464 1.0400 16.0 1.0721 1.0691 1.0633 1.0565 20.0 1.0905 1.0870 1.0906 1.0734 24.0 1.1090 1.1051 1.0982 1.0907 28.0 1.1277 1.123 1.1161 1.1092 30.0 1.1371 1.1327 1.1252 1.1171 40.0 1.1562 1.1810 1.1727 1.1640 50.0 1.2380 1.2390 1.2299 1.2136 205/50% sat