Chem 230 - Study guides, Class notes & Summaries

(WGU UQT1) CHEM 2300 - Organic Chemistry - FA Review (WGU UQT1) CHEM 2300 - Organic Chemistry - FA Review (WGU UQT1) CHEM 2300 - Organic Chemistry - FA Review

What is the third law of thermodynamics? correct answer: The entropy of a perfect crystal is zero. What is the second law of thermodynamics? correct answer: As a whole, the universe always tends towards increasing entropy. What is the relationship between number of microstates and entropy? correct answer: More microstates = higher entropy What is the relationship between temperature and entropy? correct answer: Temperature increases, entropy increases (direct) What is the relatio...

Enzymes correct answer: Proteins that act as catalyst for biochemical reactions Are enzymes consumed in a reaction? correct answer: Not consumed during the reaction Majority of enzymes are correct answer: Globular proteins Enzyme activity is affected by correct answer: pH, Temperature, or concentration What do enzyme co factors do? correct answer: Provide additional chemically reactive functional groups What are the categories of co factor enzymes correct answer: Simple meta...

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 is the symbol for a proton? P can also be replaced with an H What is the symbol for a neutron? What is the symbol for an electron? e can also be replaced with a β What is the symbol for a positron? e can also be replaced with a β What is the symbol for an α particle? He can also be replaced with an α What is the symbol for a gamma particle? What is the charge on an alpha ray? 2+ What is the charge on a beta ray? 1- What is the charge on a gamma ray? 0 W...

Many of the properties of water can be accounted for by the fact that correct answer: it is polar Compounds exist as a result of correct answer: chemical reaction In general, chemical bonding brings together elements in the correct ratios so that all of the atoms involved (except H and He) form a/an correct answer: octet What type of bond exists when valence electrons are shared between two atoms? correct answer: covalent bond What type of electron pair is indicated by the arrow ...

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 ...

ionic, dipole-dipole,london correct answer: the order of bonds strongest to weakest two substituents are on the same side of the double bond correct answer: which statement best describes cis stereochemistry in an alkene? on opposite sides of the double bond correct answer: substituents on a carbon-carbon double bond that are trans are oxygen,carbons correct answer: an ether contains an____________bound by single bonds to two ____________ alcohols correct answer: when aldehydes ...

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...