Aliquid-process feed stream f contains 99 mol-% of species 1 and 1 mol-% of impurity, species 2. the impurity level is to be reduced to 0.1 mol-% by contacting the feed stream with a stream s of pure liquid solvent, species 3, in a mixer/settler. species 1 and 3 are essentially immiscible. owing to "good chemistry," it is expected that species 2 will selectively concentrate in the solvent phase. (a) with the equations given below, determins the required solvent-to-feed ratio ns/nf (b) what is mole fraction x2 of impurity in the solvent phase leaving the mixer/settler? (c) what is "good" about the chemistry here? with respect to liquid-phase non-idealities, what would be "bad" chemistry for the proposed operation? given: ge12/rt = 1.5 x1x2 ge23/rt = - 0.8x2x3

Smog is the term used to describe the combination of fog and smoke

The big bang nucleosynthesis theory states that elements were produced in the first few minutes of the big bang while elements have their origins in the interiors of stars, forming much later in the history of the universe.

7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation. 8. when a 2.5 mol of sugar (c12h22o11) are added to a certain amount of water the boiling point is raised by 1 celsius degree. if 2.5 mol of aluminum nitrate is added to the same amount of water, by how much will the boiling point be changed? show all calculations leading to your answer or use 3 – 4 sentences to explain your answer. 9. if 5.40 kcal of heat is added to 1.00 kg of water at 100⁰c, how much steam at 100⁰c is produced? show all calculations leading to an answer. 10. the freezing of water at 0⁰c can be represented as follows: h2o (l) ↔ h2o(s) the density of liquid water is 1.00 g/cm3. the density of ice is 0.92 g/cm3. in 3 – 4 sentences explain why applying pressure causes ice to melt.