CHEM 230

IR Spectra correct answer: -Absorption of radiation causes vibrational excitation of functional groups *making it easy to ID functional groups* *0-5000cm-1* H NMR Spectra correct answer: *0-12ppm* C NMR Spectra correct answer: *0-200ppm* Mass Spec correct answer: -Used to measure the molecular weight (mass) of the compound. Alkyne Reactions correct answer: *1* Alkyne + H2/Pd &C = Alkene *2* Alkyne + H2/Lindlav Cat.= Cis Alkene *3* Alkyne + Li or Na/Liquid NH3= Trans Alkene ...

A) Initial starting solution with brownish yellow correct answer: Fe^3+ A) Initial starting solution with greyish blue correct answer: Cr^3+ A) Initial starting solution with pale green correct answer: Ni^2+ B) So4^2- correct answer: confirmed when precipitate is formed and doesn't dissolve in Nitric acid C) Cl^- correct answer: confirmed when precipitate is dissolved by NH3 D) NO3^- correct answer: confirmed by the brown ring test E) NH4^+ correct answer: confirmed by ...

hydrocarbon correct answer: compound containing only hydrogen and carbon saturated hydrocarbons correct answer: contain only single bonds between the carbons unsaturated hydrobarbons correct answer: contain double or triple bonds between the carbons aromatic hydrocarbons correct answer: contain benzene rings saturated and unsaturated hydrocarbons are correct answer: aliphatic hydrocarbons alkanes have only correct answer: single covalent bonds alkanes have the formula cor...

True or False: The addition of water to an alkene is called a hydration reaction. correct answer: True True or False: The double bonds in naturally occurring fatty acids are typically cis correct answer: True What is the IUPAC name for the following compound? correct answer: 4,4-dimethyl-1-pentene What is the structure of 2-methlyhexane correct answer: (CH3)2CHCH2CH2CH2CH3 What is the correct molecular formula for the following structure? correct answer: C6H12 A compound that...

NH2 functional group correct answer: amino RNH2 correct answer: primary amine R2NH correct answer: secondary amine R3N correct answer: tertiary amine bronsted-lowry acid correct answer: proton donor bronsted-lowry base correct answer: proton accepter lewis base correct answer: electron donor lewis acid correct answer: electron accepter alkyl halide correct answer: a compound that has an alkyl group bonded to a halogen atom, R-X thiol correct answer: has -SH g...

Metabolism correct answer: Sum total of all chemical reactions in a living organism Metabolism is a source of ________ for the functioning of the human body correct answer: energy Metabolism needed for many of the cellular processes such as correct answer: protein synthesis, DNA replication, RNA transcription, and membrane transport Plasma Membrane correct answer: Cellular boundary Cytoplasm correct answer: Water-based material of a eukaryotic cell Mitochondrion correct answe...

What four factors affect reaction rates? correct answer: -concentration of reactants -Temperature -Catalysts - Physical state of reactants relationship between reaction rate and activation energy correct answer: The higher the activation energy, the slower the reaction rate Effect of catalysts on reaction rates, why does this happen? correct answer: Catalysts speed up reaction rates because it lowers the activation energy What is an autocatalysis? correct answer: The reaction ...

What is the purpose of Lab 1: Kinetics correct answer: To examine the four factors that influence the reaction rate of a chemical reaction What conditions influence the rate of reaction of a chemical process? correct answer: 1. Concentration of reactants 2. Temperature 3. Presence of a catalyst 4. Physical state of the reactants (including surface area) What effect did the concentration of reactants have on the reaction rate? What is the reason for the effect? correct answer: - A...

Anion 1st step separating SO4(^2-) from Cl- and NO3- correct answer: *add ammonia and Ba(OH)2 *foms a white precipitate Ba(^2+) + SO4(^2-)-->BaSO4 (s) Anion 2nd step confirming SO4(^2-) correct answer: *make solution acidic with HNO3 *precipitate stays to confirm SO4(^2-) BaSO4 (s) + H(^+) --> no reaction anion 3rd step confirming Cl- correct answer: *acidify with HNO3 *add AgNO3 to make precipitate *dissolve with ammonia AgNO3 + Cl- --> AgCl(s) + NO3(^-) (aq) (for...

The solution is clear and colorless correct answer: Fe 3+, Cr 3+, and Ni 2+ is absent Step B. The solution was made basic and barium hydroxide was added. A white precipitate formed. correct answer: SO4 2- is present Step C. Silver nitrate was added the precipitate dissolves. correct answer: Cl- is present Step C. A brown ring test was performed and the brown ring formed. correct answer: NO3- is present A flame test on the unknown showed a reddish color. correct answer: Ca 2+ is ...