Organic molecules are typically separated and isolated via the organic layer in an extraction because the solvent is easier to remove by evaporation via a rotary evaporator (you will use this soon!) If you separated a mixture of compounds using hexanes and aqueous NaOH, and then separated the two phases, describe how you could re-partition the compound from the basic phase into an organic phase.

Which term describes a fracture in the earth at which land stays in the same place? a. joint b. fault c. split d. hinge

The alkali metals (group 1) consist of lithium (3), sodium (11), potassium (19), rubidium (37), cesium (55), and francium (87). they are soft, metallic solids with low densities and low melting points. based on the data shown in figure 1, how many valence electrons do alkali metals share?

A100 kmol/h stream that is 97 mole% carbon tetrachloride (ccl4) and 3% carbon disulfide (cs2) is to be recovered from the bottom of a distillation column. the feed to the column is 16 mole% cs2 and 84% ccl4, and 2% of the ccl4 entering the column is contained in the overhead stream leaving the top of the column. calculate the mass and mole fractions of ccl4 in the overhead stream, and determine the molar flow rates of ccl4 and cs2 in the overhead and feed streams. 12. mw_ccla- 153.82; mw_cs2-76.14.