Chem 116 Study guides, Class notes & Summaries

Factors that Affect the rate of the reaction: - physical state of the reactants. concentration of the reactants. temperature of the reaction. presence or absence of a catalyst. (Collision energy, collision frequency, collision orientation) In a rate expression... - the products will be positive and the reactants will be negative Intermediate - is first produced, then used as a reactant Catalyst - CRP, reactant than product

dependent upon the overall order of the reaction The units for a rate constant, k, are: dependent upon the overall order of the reaction a rate constant is unitless M^-1 M^-1 s^-1 s^-1 the fraction of collisions with total kinetic energy greater than Ea increases. An increase in the temperature of the reactants causes an increase in the rate of reaction. The best explanation for this behavior is that as the temperature increases, the collision frequency increases. the fraction of coll...

ASU CHEM 116 Final Exam Review 2022-2023 latest exam questions and answers

CHEM 1116 written exam update questions and answer 2024 Santa Monica College

CHEM 116 Exam 3 Practice Test Qs&As 2024 Which of the following combinations cannot produce a buffer solution? - ANS-HNO3 and NaO3 Consider an indicator (kHIn= 6.3 x 10^-6) that ionizes as shown below. Which of the following statements is true? HIn + H20 (yellow) <----> H3O+ +In- (blue) - ANS-In acidic solutions containing the indicator, we would expect predominantly yellow color Which of the following solubility product expressions is correct? - ANS-AuI, ksp= [Au+][I-] In the tit...

what do integrated rate laws tell us - current changes in the concentration -can't use to calculate concentration as a function of time first order formula for d[A]/dt - -k[A] units for first order - s^-1 concentration of A equation for first order - [A]=A0 e^-kt time equation for first order - t(1/2)=ln2/k second order of d[A]/dt - -k[A]^2

The lines in an atomic line emission spectrum are due to A) movement of electrons from higher energy states to lower energy states in atoms B) the presence of isotopes C) nuclear transitions in atoms D) movement of electrons from lower energy states to higher energy states in atoms - A The MAXIMUM # of electrons that may reside in the n=2 energy level is A) 2 B) 18 C) 8 D) 3 - C

What are the 5 types of intermolecular forces? 1. Dispersion 2. Hydrogen bonding 3. Dipole-dipole 4. Ion-dipole 5. Ion-Ion Dispersion forces the weakest intermolecular force; a temporary attractive force that results when the electrons in two adjacent atoms occupy positions that make the atoms form temporary dipoles Hydrogen bonding forces stronger than dispersion forces its an attraction of hydrogen to O, F, and N Dipole-dipole forces intermolecular forces that exist between polar m...

A catalyst accelerates a reaction because: A.) it decreases the number of molecules with energy equal or greater than the activation energy B.) it lowers the activation energy for the reaction C.) it increases the number or collisions between molecules D.) it supplies energy to reactant Molecules. - B.) it lowers the activation energy for the reaction Consider the Reaction: 8A(g) + 5B(g) --> 8C(g) + 6D (g)

CHEM 116 Exam 3 Practice Test Qs&As 2024 Which of the following combinations cannot produce a buffer solution? - ANS-HNO3 and NaO3 Consider an indicator (kHIn= 6.3 x 10^-6) that ionizes as shown below. Which of the following statements is true? HIn + H20 (yellow) <----> H3O+ +In- (blue) - ANS-In acidic solutions containing the indicator, we would expect predominantly yellow color Which of the following solubility product expressions is correct? - ANS-AuI, ksp= [Au+][I-] In the tit...