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Chemistry IL

QuestionAnswer
What is the reaction rate? The change in the amount of reactants or products per unit time
Calculate the order of the reaction with respect to NO Rate= K[NO2]^2[NO][O2]^2 1
State the rate determining step: Cl. + O3 -> ClO. + O2 (slowest step) ClO. + O. -> Cl. + O2 Rate = K [Cl.][O3]
What is the half- life of a reaction? The time it takes for half of the reactants to be used up.
Explain why phenol doesn't require a halogen carrier to react with Br2 ? The oxygen lone pair of electrons on the p-orbital is partially delocalised onto the benzene ring giving benzene a higher electron density, making it easier for electrophiles to attack the phenol.
State the order of a reaction when the rate-concentration graph shows a straight horizontal line 0
State the reagents and reaction conditions of the nitrogenation of benzene Conc H2SO4, conc HNO3, below 55 degrees
What is the name of the reaction between benzene and Br2 Electrophilic substitution
What is the salt formed when sodium and phenol react? Sodium phenoxide
Name two used of phenol Antiseptic, adhesives, Bakelite plastics, polymer production
State the compounds formed when nitrobenzene reacts with tin and concentrated HCl at reflux? phenyl amine and water
Name a tertiary amine any i.e. trimethylamine,
State the reaction of the formation of nitrous acid NaNO2 + HCl -> HNO2 + NaCl
A catalyst is added to an equilibrium, what direction does the equilibrium shift in? None, equilibrium is achieved faster.
What is a Brownsted-Lowry acid Proton donors, release H+ ions when mixed with water
State what a strong acid is? Acids that dissociate almost completely in water, nearly all H+ ions are released.
State what a buffer is? A solution that resists changes in pH when small amounts of acid or alkali are added.
How many carbon environments are in butanol? 4
In a proton NMR spectrum, if a peak is split into a doublet how many hydrogen atoms are on adjacent carbon? 1
State what the relative area under each peak shows? The relative number of H atoms in each environment
Created by: vidaedon