Consider an evaporation-crystallization process. 100 kg/h of a 40 wt% nacl solution is joined by
a recycle stream and the combined stream is fed to an evaporator. the resulting concentrated
solution is fed to a crystallizer which produces a filter cake consisting of solid nacl crystals and
solution in a ratio 3 kg solution/1 kg of crystals. the remaining solution is recycled to join the
fresh feed. if 60% of the water in the fresh feed is evaporated in the evaporator, find:
a.
the production rate of crystals
b.
the composition of the recycle stream
i just need to get pointed in the right direction.

If i initially have a gas at a pressure of 12 atm, a volume of 23 liters, and a temperature of 200 k, and then i raise the pressure to 14 atm and increase the temperature to 300 k, what is the new volume of the gas?

Why is retrograde motion an apparent motion

Tooth enamel consists mainly of the mineral calcium hydroxyapatite, ca_10(po_4)_6(oh)_2. trace elements in teeth of archaeological specimens provide anthropologist with clues about diet and diseases of ancient people. students at hamline university measured strontium in enamel from extracted wisdom teeth by atomic absorption spectroscopy. solutions with a constant total volume of 10.0 ml contained 0.726 mg of dissolved tooth enamel plus variable concentrations of added sr. added sr find the concentration of sr in the 10 ml sample solution in parts per billion = ng/ml. find the concentration of sr in tooth enamel in parts per million = mu g/g.