Organic Chemistry Questions

Label all acids and bases and conjugate acids and bases in the reaction below O base IZ conjugate base acid conjugate acid ZO

If the temperature of a reaction is increased how will this affect the reaction rate according to the equation shown below if the concentration of reactants is not changed Ea k Ae RT Select one O reaction rate will increase reaction rate will decrease reaction rate will stay the same

A local AM radio station broadcasts at a frequency of 780 KHz Calculate the energy of the frequency at which it is broadcasting Energy kJ photon 1 KHz 10 sec Submit Answer Try Another Version om

Match the reagent to the steps for the synthesis of decane from acetylene Drag and drop options on the right hand side to reorder and match with items on the left Reordering may cause items on the right hand side to swap positions Step 1 Step 2 Step 3 Step 4 Step 5 H Pt CH3CH CH CH Br NaNH3 NaNH2 NH3 CH3CH CH CH Br NaNH2 NH3 H Lindlar s catalyst III

How can you synthesize propyne starting with 1 1 dichloroethane Drag and drop options on the right hand side to reorder and match with items on the left Reordering may cause items on the right hand side to swap positions Step 1 Step 2 2 equiv NaNH2 NH3 3 equiv NaNH2 NH3 CH 3 Br 1 CH3CH Br 2 H 30

For each pair of covalently bonded atoms choose the one expected to have the higher bond energy The strength of a covalent bond depends upon the size of the atoms and the bond order In general short bonds are strong bonds A C O B C 0 C C N D C N A B les i C D ded for this question

What is the only way to synthesize 5 methylhex 2 yne a b A B Reaction a Reaction b H C C C Br CH Br 5 methyl hex 2 yne

C6H12O6 s 502 g 6CO2 g 6H O l Is the above reaction consistent with the law of conservation of mass Explain using the law of conservation of mass

If a scientist combined 130 81g of reactant X from the chemical equation below with 124 85g of reactant Y what will the total mass of the products be Assume the reactants were completely used up during the reaction and report your answer without units Reaction X Y Z H

Draw the conjugate acid and conjugate base for the reaction below Which acid is the strongest acid in the equilibrium reaction below Also on which side is the equilibrium residing i e the side on which components that have the higher concentration once equilibrium is reached Select all answers that apply Select one or more conjugate acid conjugate base The equilibrium is residing on the product side strongest acid is the conjugate base The equilibrium is residing on the reactant side strongest acid is the conjugate acid strongest acid is the acid strongest acid is the base

Match the reagent to the steps for the synthesis of 2 hexanone from acetylene Drag and drop options on the right hand side to reorder and match with items on the left Reordering may cause items on the right hand side to swap positions Step 1 Step 2 Step 3 Step 4 Step 5 CH3CH CH Br NaNHz NH3 NaNHz NH3 CH31 03 H O KMnO4 H O OH H O H SO4 HgSO4 III

Fill in the orbital energy diagram for sulfur E 3s 2s 1s 3p 2p

The length of a covalent bond depends upon the size of the atoms and the bond order For each pair of covalently bonded atoms choose the one expected to have the shorter bond length N N or N N Use the References to access important values if needed for th CEN or C N

You need to KNOW this basic information This quiz will be with NO NOTES I will provide a periodic table to be used YOU need to understand the periodic table There will be NO questions on the history of the atom atomic model You will need to know what makes up an atom and how the periodic table is arranged 1 6 Fill in the blank Circle the correct answers for charge where it s found what the mass is 1 Proton 0 charge In or outside the nucleus 1 or O amu atomic mass unit 2 Neutron charge In or outside the nucleus 1 O amu atomic mass unit 3 Electron charge In or outside the nucleus 1 or O amu atomic mass unit 4 Atomic number is the number of 0 0 5 Isotopes are the same number of protons different number of 6 The Mass number is equal to the number of Or number of

If the compound below were reacted with H and Pd C which major product would be obtained Select one O 0 0 Br Br HO Br Br Br Br Br Br

Rank F Cl and Br in order of increasing first ionization energy O Cl F Br O Br Cl F OF Cl Br O Cl Br F Use the References to access important values if n FC

R Alkyne MOFO A B C N D Azide III N Azide Using the image above follow the arrow pushing mechanism of the general click reaction shown to predict the product formed when Professor Carolyn Bertozzi s strained alkyne MOFO reacts with an azide Click Reaction Compound a Compound b Click Reaction Compound c Triazole No reaction occurs

Atomic P Hydrogen EN O Atomic P nents in the space below Beryllium EN STATES Atomic P E Fluorine N O Argon Atomic P E N

What is the major product formed when hept 1 yne is treated with two equivalents of HBr A B C 1 1 dibromoheptane 2 2 dibromoheptane 1 2 dibromoheptane

1 Identify the species being oxidized and reduced in each of the following reactions Cr Sn Cr Sn 3Hg 2 2Fe 6Hg 2Fe

What class of organic product is produced when hex 1 yne is treated with a mixture of HgSO4 H A Ether B Carboxylic acid C Aldehyde

2H2O2 aq H O l O2 g What is wrong with the chemical reaction above O It has 2 reactants O Mass is being destroyed It is balanced Mass is neither created nor destroyed It is a decomposition reaction O Mass is being created

1 2 A B 3 4 5 6 7 H J 8 9 F 10 11 12 13 H 14 15 16 17 CD G 18 E

What product is formed in the following reaction A Compound a B C Compound b Compound c Br Br a H3C C C CH3 excess Br CCI4 CI Br b H3C C C CH3 CI Br c H3C C C CH

What is the product formed in the following A Compound 1 B 1 H3C Compound 2 H Br CH3 2 eq HBr 2 H3C Br Br CH3

What is the keto tautomer of the following enol A B C Compound a Compound b Compound c D Compound d OH 11

Which chair conformation is the least stable depiction of the compound drawn below OH Select one OH ZOH 7 OH MOH

2 A 3 4 5 6 7 8 9 10 11 12 16 F 13 14 15 16 H G 17 CD 18 Choose the correct letter that corresponds Choices Lanthanoid Series Metalloid Carbon Alkaline Earth Halogens Transition Metal Noble Gas Boron Group Actinoid Series Oxygen Group Alkali Metals In addition Label Hydrogen Shade a period Shade family group 4B

1 Atomic P 2 A Hydrogen E N I Atomic P 3 4 5 6 7 8 9 10 11 12 H FL Beryllium E 13 14 15 16 17 CD N G 18 E Atomic P E Fluorine N Atomic P E Lanthanoid Series Metalloid Carbon Alkaline Earth Choose the correct letter that corresponds Choices Halogens Transition Metal Noble Gas Boron Group Actinoid Series Argon Oxygen Group Alkali Metals N In addition Label Hydrogen Shade a period Shade family group 4B

Upload a photo of a drawing or a graphic for this question C6H12 l 902 g 6CO2 g 6H2O g 1 Draw particles to show how the reaction above is consistent with the law of conservation of mass 2 Explain how your particle model shows mass is conserved

How many electron push arrows at a minimum are needed to convert the resonance structure on the left to the resonance structure on the right O O

and number the parent as learned in class Draw 4 ethyl 2 2 3 5 tetramethylnonane How many H atoms are bonded to carbon 2

Smol otod 3 For the reaction whose balanced equation is as follows find the number of grams of 12 that will be formed when 300 0 g of bromine 2KI Br2 2KBr I react 38 habivore DOW amaldo9 z20M 220M enditesup glavello si to rope wank MAJAS O BA JAWOST emo HA baar to emong 0 ad tr 4 For the reaction whose balanced equation is as follows find the number of grams of sodium that must react to produce 42 0 grams of sodium oxide 4Na O Na O Nazo taum noitonen antti tapan taunt naponby to mong yoom world HM binommo to anione o soubor 5 For the reaction whose balanced equation is as follows find how many grams of zinc phosphate will be produced by the reaction of 5 00 grams of ammonium phosphate 3 ZnCl2 2 NH4 3PO4 Zn3 PO4 2 6NH4Cl muninu to amo Cato 220mA SwoMS to

Predict the major product for the reaction shown 100 of ob E AICI III 11 IV

What type of strain is depicted in the structure below Select one O Baeyer or angle strain O Prelog or transannular strain Pitzer or torsions

Calculate the equilibrium constant for the following reaction at 25 C where AG rxn is 25 1 kJ mole CO g 2H g yields CH OH g 6 2 x 10 2 32 02 5 x 10 0 101

Please select all functional groups FGs that are found in the compound below Note incorrect answers Time N Select one or more O alkyl halide alkene alkyne alcohol ether thiol sulfide thioether arene amine aldehyde ketone carboxylic acid acyl halide carboxylic acid anhydride ester OH thioester

18 What reagent s are suitable to carry out the conversion shown OH A C E 1 OsO4 NMO NaBH4 CH3OH 1 03 2 CH3 2S Both B and C OH B 1 03 2 CH3 2S 3 NaBH4 CH3OH D Both A and B

A potential drug needs to be able to bind to a Zn metalloenzyme in order to achieve the desired potency Which functional group might be the most useful for zinc binding O hydroxyl benzene ring ether O thiol

What does the law of conservation of mass state O For every action there is an equal and opposite reaction O Energy cannot be created or destroyed Mass can be created or destroyed O Mass is lost O Mass is gained O Mass cannot be created or destroyed

Draw the major product of this SN1 reaction Ignore any inorganic byproducts Br NaCl acetone H O

4 5 mCPBA OH Na NH 1 LIAIH 2 H O 1 0s04 2 NaHSO H O

11 action with an activation energy of 123 kJ mol and a frequency factor A of 9 13 x 1019 M 15 1 is carried out at 311K What is the value of the rate constant for this reaction 4 71 x 1021 M 1 1 Ob0 200 M s1 O c 9 13 x 1019 M 1g 1 O d 8 71 x 1019 M 1 O e 200 M

16 Which reaction below gives a single enantiomer of an optically active chiral product 0 H CH3 CH3COOH A B C D H CH3 CH3 CH3 HBr peroxides 1 BH3 THF 2 H O2 NaOH HBr

Click in the middle of each cell in the table below that contains a basic pH value pH 2 27 pH 4 21 pH 8 89 pH 12 6 pH 14 8 pH 0 56 pH 3 99 pH 6 5 pH 07 45 pH 978 pH 5 61 pH 911 7

Predict the major product of this organic reaction CH3 CH CH CH3 H2O Specifically in the drawing area below draw the condensed structure of the major product If there is no reaction check the No reaction box under the drawing area C C X G

Jessica is doing her pre lab homework for Chemistry She is asked to predict how many grams of oxygen gas are produced if 40 0 g of potassium chlorate is decomposed according to this balanced chemical equation shown 2KCIO3 s 2KCI s 302 g She performs the following calculation and gets 15 7 g of O2 as her answer KCIO mol KCIO 1 mol KClO3 3 mol O 122 55 g KClO3 2 mol KClO3 mol O 32 00 g 0 1 mol O 80 The next day when her group performs the experiment they obtain an actual yield of 14 5 grams of oxygen gas What is the percent yield for the experiment report your answer to the tenths place i e one decimal place

1 Which molecule has the R configuration A OH B C HC HC A C H CC HO C CH OH H H CH3 COH H CH3 CH3 CH3 CH3 CH3 18 D CH3 CH3 H CH 6 Which Newman projection represents the most stable configuratic CH3 2CHCH CH3 2 HC HO CH OH x HC 031 B D CO H OH CH3 1010 9 H CH3 H CE CH3 CH3 CH3 H H CH3 CH3 H CU CH3 CH3

In the following molecule identify functional groups that the two molecules have IN COMMON 000 alcohol ether amine aldehyde ketone carboxylic acid ester amide aromatic ring HOI HN CH3 CH 3 NH CH N Methylphenethylamine

give the major products a AVIV organic product or set of organic products AR i H3C CH C 0 C CH CH3 H O 8 0