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You are tasked with distilling a laboratory solvent (Solvent A) which is contaminated with 5% of another solvent (Solvent B). The boiling point of Solvent A is 65˚C. The boiling point of Solvent B is 78.5˚C. You need to obtain at least 50mL of pure Solvent A. Which laboratory technique should you use?

A patient has been diagnosed with iron deficiency anemia (IDA). Which medication does the nurse anticipate to be ordered?

You wish to recrystallize a compound that displays a melting pointing range of 83˚C to 85˚C and has black flecks present in an otherwise colorless (white) powder. What would be the step that would remove the black flecks that also happen to be insoluble in the recrystallization solvent at any temperature (i.e. room temperature to the boiling point of the solvent)?

Aspirin is synthesized from salicylic acid and a reagent that adds an acetyl group to the phenol group of salicylic acid. Q17.png Which of the reagents listed below would add the acetyl group of salicylic acid?

The assembled glassware shown below is best used for: Reflux.jpg  

Alkenes react with molecular bromine (Br2) to form a product. Q8.png For the reaction shown above, what will be the expected product.

The LPN is monitoring lab results for a patient receiving anticoagulant therapy. Which lab finding provides the best estimate of the patient’s anticoagulation status?

Thin-layer chromatography is used to:

What was the impact of Sam Cunningham and Bear Bryant?

Alexander Hamilton, the treasury secretary, urged Congress to assume state debts and combine them with the government’s foreign debt, in his Report on