Chem 241 - Study guides, Class notes & Summaries

Fraction of Dissociation - correct answers the fraction of the acid in the conjugate base form (A-). [A-] / [A-]+[HA] or [A-]/F Fraction of Association - correct answers the fraction of the base in the conjugate acid form [BH+]. [BH+] / [BH+]+[B] or [BH+]/F Strong Acids - correct answers HClO4, H2SO4, HNO3, HCl, HI, HBr Strong Bases - correct answers LiOH, NaOH, KOH, RbOH, CsOH Ca(OH)2, Mg(OH)2, Ba(OH)2, Sr(OH)2 What should I do if I have a dilute strong acid or base? (10e-6<F...

You will use a water bath to heat the contents of your craig tube. Why not just heat the tube directly on the hot plate? - correct answers Rapid heat transfer might crack the tube or cause the solvent to bump If unsure which layer of your separatory funnel is the organic layer and which is the aqueous layer: - correct answers add a few drops of water to each layer to see if the water mixes in (aqueous layer) or forms a separate layer (organic) Whenever you heat liquids, especially near the...

Extraction - correct answers Transfer of a solute from one phase to another Eluent - correct answers Fluid entering the column Partition Chromatography - correct answers Separation based on solute dissolving into stationary liquid Ion-Exchange Chromatography - correct answers Separation based on charge, stationary phase is made of either negatively or positively charged beads Size Exclusion Chromatography - correct answers Separation based on molecular size, larger molecules elute fi...

Assume you have a mixture that is 20% acetone 50% cyclohexane, and 30% dimethyl carbonate. Sketch a GC of this mixture. Label each peak and make each peak roughly the correct size. - correct answers On a graph of abundance vs time, acetone comes off first, then cyclohexane, then dimethyl carbonate. The sizes are in a 2:5:3 ratio. The pKa of benzoic acid is 4.2. At a pH of 2.0, 4.2, and 12.0, in what state(s) of protonation will benzoic acid be? And in which layer (water or organic) would...

increase dsp (A term) - correct answers A term increases increase dsp (B term) - correct answers B term unchanged increase dsp (Cs term) - correct answers Cs term increases increase dsp (Cm term) - correct answers Cm term unchanged OTC resolution - correct answers higher OTC analysis time - correct answers shorter OTC sensitivity - correct answers higher OTC sample capacity - correct answers lower increase dsp (plate height) -

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?

CHEM 241 ORGANIC CHEMISTRY STUDY GUIDE 2024 CHIRALITY.CHEM 241 ORGANICCHEM 241 ORGANIC CHEMISTRY STUDY GUIDE 2024 CHIRALITY.CHEM 241 ORGANIC CHEMISTRY STUDY GUIDE 2024 CHIRALITY. CHEMISTRY STUDY GUIDE 2024 CHIRALITY.

When are you allowed to enter the lab? (Choose all that apply) - correct answers When it is the official lab start time and your TA has arrived, When you are wearing goggles and a lab coat When must you wear safety goggles in lab? (Choose 1) - correct answers At all times, including when using computers in the instrument room What clothing is NOT allowed to be worn in lab? (Choose all that apply) - correct answers Sandals and other open toed shoes, Shorts Which of the following actions ...

When are you allowed to enter the lab? (Choose all that apply) - correct answers When it is the official lab start time and your TA has arrived, When you are wearing goggles and a lab coat When must you wear safety goggles in lab? (Choose 1) - correct answers At all times, including when using computers in the instrument room What clothing is NOT allowed to be worn in lab? (Choose all that apply) - correct answers Sandals and other open toed shoes, Shorts Which of the following actions ...

Extraction - correct answers The physical transfer of a solute from one phase to another Goals of separation - correct answers 100% recovery and 100% purity Precipitation - correct answers Liquid to solid Solvent-solvent extraction - correct answers Solvent 1 to solvent 2 Distillation - correct answers Liquid to gas Sublimation - correct answers Gas to solid Distribution constant: KD= - correct answers [S]org/[S]aq Which phase is on top: aqueous or organic? - correct answers...