Organic Chemistry Questions

mistry What is the right option and why The figure below shows a cartoon of the reaction of a lactam antibiotic in the active site of transpeptidase R OH SER R The mechanism of reaction is SN2 IZ Which ONE of the following statements about the reaction is INCORRECT HN SER The B lactam has reactivity similar to an ester The product ester is protected from bulk water and enzymes so is not easily hydrolysed The driving force for the reaction comes from release of ring strain in the B lactam The carboxylate group could form an ion pair with amino acid residues of the protein S

Which of the following cannot form a solution O liquid solid O liquid gas Osolid solid O all of these can form solutions

A gas at a temperature of 35 C and a pressure of 1 75 atm has a volume of 1 5 L What is the volume if the temperature is increased to 55 C and pressure is increased to 2 1 atm Oa 1 33 L Ob 0 80 L O c 1 17 L d 1 69 L

b c d 1 3 marks Provide Names for the following alkanes Y 4 t Date

a b d 1 3 marks Provide Names for the following alkanes

Which of the following compounds is most acidic OIV OH IV NH

gas expands from 2 5 L to 8 6 L at a constant temperature If the initial pressure is 1 6 atm what is the final press a 47 1 atm Ob 465 atm O c 4 7 atm d 5 5 atm Oe 13 4 atm

Choose the best answer for each of the following question Which of the following is an expression of concentration O molality Omolarity O percent concentration by mass O all of these

What is the major contributing resonance structure HO S HO S O III O all of these structures contribute equally HO III DO

Which of the following compounds is most acidic 11 III OH IV NH

a b c 2 Draw structures for the following Hept 3 yne 3 phenyl 2 2 dimethylhexane 2 bromo 4methylhex 2 ene

What is the molarity of a 500 ml solution containing 1 10 mol NaCl a 0 02M Ob 0 55M Oc 0 45 M O d 2 2 M O e 5 5 M

e f 2 chloro 3 phenylhexane heptane 2 4 diol 2 4 dimethylpent 2 ene

The most rapid way to dissolve solids is to put them under pressure O use larg pieces O allow them to stand Ouse heat

Which of the following violates the rules for curved arrows H HI H No 1 II and IV 01 OI and III None of these I H ZEU IV

a b c Draw structures for the following Hept 3 yne 3 phenyl 2 2 dimethylhexane 2 bromo 4methylhex 2 ene

Which of the compounds shown below would be the most likely product expected from the reaction scheme shown CH CH C CH OI O III Oll CI excess II HCI CI av III IV CI G V G

4 If the partial pressure of a gas applies force on a liquid what happens to the solubility of the liquid as the gas continues to apply force on the liquid a The solubility of the gas liquid remains the same b The solubility of the gas increases c The solubility of the gas cannot be determined d The solubility of the gas decreases tapyloa wintin oma galers guressioni d

OH I C OOC CH CH OPO OP O3 OOC CH CH OH ob

What is the volume of 0 4 moles of a gas with a pressure of 103 2 kPa and a temperature of 25 C a 1 15 L b 81 L Oc 9 6 L d 104 L

gas is cooled from 40 C to 15 C If it is kept at a constant pressure and the initial volume is 3 50 L what is the final volume a 1 3 L Ob 15 8 L Oc 3 7 L d 3 3 L

Question 10 1 point How many moles of H O can be produced from 26 15 moles of O Round your answer to two digits after the decimal point 2CH2 50 2H CHgO 2H O Your Answer

Which species is are an unlikely intermediate s in the reaction below 1 OH OH 2 neither 3 nor 4 is likely O neither 2 nor 3 is likely O neither 1 nor 4 is likely O neither 1 nor 2 is likely O 1 is unlikely OH H O 3 O O F 4 D H

Which of the following contains the smallest sized particles mixed into the medium suspension O solution colloid O heterogeneous mixture

a OH b d 6 6 6 6 C H NH S OH F O C F SH OH i NH F C H OH

Shown below are four student drawings of carbocations Rank these structures from least stable to most stable If any structure could not be formed at all rank it least stable J L K J M M K L J K J L M K L J M K M

What is the volume of 1 8 moles of a gas with a pressure of 102 kPa and a temperature of 45 C a 6 6L Ob 47 L O c 46 6 L O d 4 8 L O e 4 71 L

How many moles of silver nitrate must be added to pure water to form 200 ml of a 0 5 M silver nitrate solution Oa 0 5 mol Ob 4 mol Oc 1 0 mol Od 100 mol e l mol

How many moles of gas are present in 42 5 L at STP Oa 1 9 mol O b 53 mol O c 20 1 mol O d 4 25 mol

Write out the dissociation for the following compounds Please remember ionization occurs to give metal and non metal ions Dissociation Equations Worksheet 1 AgCl 2 NaOH Ag Cl Nat OH 3 AL SO 72A1 3 3804 4 CaCO Cq 2 C03 2 5 Na SO 6 KCI 7 MgBr 8 FeSO 9 Cu 0 10 PbCl 11 FeCl 12 Ca NO 13 Fe O 14 ZnCl 15 K CO Predict if the following with dissolve in water 1 NaCl 2 C H O 3 Oil 4 K CO

Examine the following compound and rank the indicated hydrogens from most acidic to least acidic A B 2 1 3 4 1 4 2 3 C 1 2 3 4 D E 4 1 2 3 1 2 4 3 1 HO

Calculate the molarity of a solution that has 0 42 mol of table salt NaCl dissolved in enough water to make 0 90 L of solution Record your answer to 3 digits after the decimal place Your Answer Answer

Which of the following compounds are aromatic Select all that apply Select all that apply A 1 B 2 C 3 D 4 H Te N H H N HIN N H

Given a fixed amount of gas held at constant pressure calculate the volume it would occupy it a 2 00 L sample Q100 L 4 00 L 6220 1 004551

D b d OH 8 8 C H NH S OH O F OH SH i ord ord F NH F C H F LL OH

If the following molecule was treated with one molar equivalent of NaOH which proton would predominantly be removed A B C D 1 2 3 4 H O F F O 2 H H

Provide the correct systematic name for the compound shown here CH3 CH C 0 CH3 propan ethyl methan ethan propyl methyl oate ester one

Which nitrogen atom is the most basic A 1 B 2 C 3 D 4 N 1 4 NH

fil Perte Clobod Home lepert Draw Fort Design Layout Calibri Body 11 A A A A EN BIU X A A Ingen d txonet Wad Owenty Type here to search O covalent compound O ionic compound O References Malings Review View Help O P Paracy of 15 P 16 N a compound between two metals ABCD Ascene AaBbCc Asbbcct No 1 No Spa Howling Heading 2 Stylos Electron Proton SUN Pried place Salact A iers Stor Dietate d Share Da Serstely Editor Voke Serately G 34417 2011 06

Provide the reagents necessary for the following transformation H O CH CECH A H O H O HgSO4 B 1 BH3 2 H O2 NaOH A B H C CH CH H

10 points Nuclear stability prediction 2C is 6 252 Es is 99 10 points Complete the following balanced equation Hint You may need to check the per table 81 Br 81 Rh 0 77 Se 36 Kr 34 Se 81 Kr

Order the following ions from strongest to weakest base 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 Strongest base Second strongest Weakest base 1 HO S O1SIO O 0 Compound 1 2 Compound 2 Compound 3 O I o 3 O O 0

Which process occurs when water is broken down by electrolysis into oxyger and hydrogen O decomposition O precipitate O reactivity combustibility D

is requ and this equation Q mLvapor Substance Aluminum Copper Gold Helium Lead Mercury Water OA 4730 kJ B 207 kJ Latent Heat Fusion melting kJ kg 400 207 62 8 5 2 245 11 4 to vaporize 2 kg of copper Use the table below 335 Melting Point C 660 1083 1063 270 327 39 0 Latent Heat Vaporization boiling kJ kg 1100 4730 1720 21 871 296 2256 Boiling Point C 2450 2566 2808 269 1751 357 100

1027 Party Hope hot De Depot Pra Per 12 Ca Chine Pype here to search NaCl The New E BAU H20 Mal Racin Vene p AAA 4E E3 39 A A Pergun Adi Ate AaBbc Act AaB He Healing Henday

LSD is a common recreational drug known for its hallucinogenic property Which atom of this drug would be the most basic A a B b C C D d E e A NA B D

C H 50 20 0g C H 1 mole C H 0 455 moles C H 8 8 44 0g C H 3CO 4H O 0 455 moles C H Copy link How many water molecules are formed every time 1 molecule of propane reacts 2 MULTIPLE CHOICE QUESTION 3

Which property is described in each case a Gold is shiny b Aluminum floats on water c Carbon does not allow electricity to flow through it d Chlorine dissolves in water e Magnesium burns in oxygen

Match the structure with the correct description based on Huckel s Rules I 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 Aromatic Non Aromatic Anti Aromatic

Identify the stereochemistry of each double bond labeled 1 and 2 in the following structures E or Z A B C 1 E 2 E 1 E 2 Z 1 Z 2 E 1 Z 2 Z D 1 1 2 O