Abrine solution of salt flows at a constant rate of 3 l/min into a large tank that initially held 100 l of pure water. the solution inside the tank is kept well stirred and flows out of the tank at a rate of 2 l/min. if the concentration of salt in the brine entering the tank is 0.4 kg/l, determine the mass of salt in the tank after t min. when will the concentration of salt in the tank reach 0.3 kg/l?

b. accuracy of the data matters alot more than its number of digits, organization or amount of detail. quantitative observation is more accepted than the qualitative observation.

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the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl