Liquid extractionis an operation used to separate the components of a liquid mixture of two or morespecies. In the simplest case, the mixture containstwo components: a solute (A) and a liquid solvent(B). The mixture is contacted in an agitated vessel with a second liquid solvent (C) that has two keyproperties: A dissolves in it, and B is immiscible or nearly immiscible with it. (For example, B maybe water, C a hydrocarbon oil, and A a species soluble in both water and oil.) Some of the A transfersfrom B to C, and then the B-rich phase (the raffinate) and the C-rich phase (the extract) separate fromeach other in a settling tank. If the raffinate is then contacted with fresh C in another stage, more Awill be transferred from it. This process can be repeated until essentially all of the A has beenextracted from the B

13. calculate the initial concentration (before precipitation) of carbonate ions after the addition of each 0.05 ml of solution b to the 1.00 l beaker of solution a. divide the work among group members and write the answers in the table in model 3. assume the volume change as solution b is added is negligible. 14. notice the initial concentrations of zn2+ - and cu2+ in the table in model 3. a. explain how these were obtained from the data in model 2. b. as solution b is added and precipitates form, do these initial concentrations change? 15. use the data in model 2 to indicate the presence of precipitate (either znco3 or cuco3) after each 0.05 ml addition of solution b in model 3. 16. use the initial concentrations of carbonate ions and zinc ions to calculate the reaction quotient, qsp for the zinc carbonate scenarios in model 3. divide the work among group members and write the answers in the table in model 3. 17. use the initial concentrations of carbonate ion and copper(ii) ions to calculate the qsp for the copper(ii) carbonate scenarios in model 3. divide the work among group members and write the answers in the table in model 3.

There are main groups in the modern periodic table of elements

Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?