Atank contains 1000 l of a solution consisting of 100 kg of salt dissolved in water. pure water is pumped into the tank at a rate of 5 l/s, and the mixture (kept uniform by stirring) is pumped out at the same rate. how long will it be until only 10 kg of salt remains in the tank?

A5.000 g sample of niso4 h2o decomposed to give 2.755 g of anhydrous niso4. what is the formula of the hydrate? what is the full chemical name for the hydrate? what is the molar mass of the hydrate? niso4•_h2o what is the mass % of water in the hydrate?

How does a noncompetitive inhibitor reduce an enzyme’s activity?

4.25g sample of solid ammonium nitrate dissolves in 60.0g of water in a coffee-cup calorimeter, the temperature drops from 22.0 c to 16.9 c. assume that the specific heat of the solution is the same as that of pure water. calculate delta(h) (in kj/mol nh4no3) for the solution proces.