Drexel University

V1 - correct answers volume of phase 1 (phase being extracted) V2 - correct answers volume of phase 2 (phase doing the extracting) [S]1= - correct answers Q*m/v1 [S]2= - correct answers (1-Q)*m/v2 if [H+]> Ka - correct answers D=k if [H+]< Ka - correct answers D=0 gas-gas chromatography - correct answers won't work because gases mix solid-solid chromatography - correct answers won't work because solids don't flow Velocity of solute - correct answers Vm* (1/1+K(Vs...

Electrophilic Aromatic Substitution Nucleophilic Aromatic Substitution Elimination Addition what reagent is used to convert O= to alkyl and OH group? CH3Li and H3O+ what reagent is used to convert alcohol group to alkene?

Internal Conversion - correct answers 7 Vibrational Relaxation - correct answers Squiggles Fluorescence - correct answers 10 phosphorescence - correct answers 4 1 meter equals how many nanometers - correct answers 1*10^9 nanometers Lowest to highest photon energy - correct answers radiowave, microwave, infrared, visible, ultraviolet, X-ray, gamma-ray Infrared absorption - correct answers molecular vibration transition UV absorption - correct answers valence electron transiti...

What is the maximum amount of time a specific solute band will spend in the mobile phase of a chromatography column? - correct answers tm Which of the following is NOT an advantage of the use of OPEN TUBULAR columns (capillaries) over packed columns? - correct answers A. smaller plate height (H) B. [[[[greater column capacity]]]] C. faster flow rates D. No A-term in the van Deemter equation E. higher separation efficiency Which mode of chromatography separates compounds based on th...

What's the reason for filtration in recrystalization - correct answers to remove insoluble impurities ortho and para are more stable why - correct answers because allow for tertiary carbocation when can you skip filtration during recryst. - correct answers if no insoluble impurities are present why warm filter tip pipets - correct answers to prevent premature crystalization why cant the solvent from a recrystallization be removed via evaporation instead of centrifugation? - correct ...

solvent-solvent extraction - correct answers solute is partitioning between two layers based on solubility and polarity Partition coefficient K - correct answers [S]org/[S]aq q^n=(V1/(V1+KV2)^n - correct answers q-fraction of solute left in V1 V1-volume of solvent being extracted V2-volume of solvent used to extract K-partition coefficient m-total moles of solute 1 big extraction vs many small extractions - correct answers many small extractions are better than 1 small extraction ...

What acid is the primary catalyst in the making of the most explosives used in North America? - correct answers Nitric Acid What is ANFO? - correct answers Ammonium Nitrate Fuel Oil What type of explosive is used mainly for military purposes? - correct answers RDX What is most nitric acid used to produce? - correct answers Ammonium Nitrate Fertilizer Where was the catastrophic nitric acid explosion of 1947? - correct answers Texas City, TX What chemical is produced in the largest ...

Lab 3 Acid Base Extraction: Carboxylic Acid reactants (in order) - correct answers NaOH, HCl Lab 3 Acid Base Extraction: Amine reactants (in order) - correct answers HCl, NaOH Lab 5 Friedal-Crafts Acylation Reactants - correct answers ferrocene, acetyl chloride, aluminum chloride, methylene chloride Lab 5 Friedal-Crafts Acylation Products - correct answers ferrocene, monoacetylferrocene, diacetylferrocene Lab 6 Reactivity of Aromatic Compounds Reactants - correct answers anisole, ani...

Beer's Law Conditions - correct answers 1. Monochromatic Radiation is passed thru solution 2. Solution is not too concentrated. Typically <0.01M 3. Solution is homogenous 4. Absorbing species is not participating in a concentration dependent equilibirum X-Ray - correct answers Electronic Transitions - Core electrons UV-Vis - correct answers Electronic Transitions - Valence electrons; vibrational; rotational IR - correct answers Vibrational; Rotational Micro - correct answers R...

Purification techniques (discussed so far) - correct answers Extraction Recrystallization Simple/fractional distillation Analysis techniques (discussed so far) - correct answers Mp NMR TLC When to use extraction - correct answers Want to separate compounds based on solubility and density gradient, and you have two immiscible liquids. Why could hexane be used in an extraction with water, but not acetone? - correct answers Acetone is water soluble and hexane isn't; extraction require...