Organic Chemistry Questions

18 Following compound is named as a N N dimethylformamide c N N methylformamide 0 CH C N CH b N N dimethylacetamamidi d N N methylacetamamide

19 The main organic product of acyl chloride hydrolysis is a ester b amide carboxylic acid d alcohol 20 Which product would you expect from the reaction of ethyl ethanoate with H Or a ethanoic acid ethanol acetamide ethanol only ethanol c d only acetic acid

Which of the following subshells is greatest in energy O5s 3s 4p 4d

Indicate the number of protons neutrons and electrons in the following atom O7 protons 8 neutrons 10 electrons O7 protons 8 neutrons 4 electrons 15 protons 3 neutrons 1electrons 8 protons 7 neutrons 11 electrons

What is the correct formula with physical state for magnesium under standard conditions Mg s Mg 1 Mg g Mg2 1 Mg2 g B

How many neutrons are in the following 200 80Hg O 120 O 200 80 O 76 27

Which of the following are elements ON Au NaOH O C6H6

What is the correct formula with physical state for nitrogen under standard conditions ON2 g ON2 1 ON g ON s ON4 g 2

1 An alkane with eight carbon atoms in a linear configuration is called a a hexane b heptane c octane 2 What is the common name of the following substituent CH CH C CH d pentane

Two atoms with the following symbols are 24 12X 24 the same element and isotope ions 14 X O the same element isotopes different elements

Rubidium is found naturally in only two isotopic forms 72 172 of natural rubidium is 85Rb and 27 828 is 87Rb The mass of 85Rb is 84 91179 amu and 87Rb is 86 90918 amu From this information calculate the atomic mass of rubidium

How many neutrons are in the following 50Sn4 119 O 119 O 50 O 69 46

How many protons does the following element have What is the atomic number for the following element N O 7 protons atomic number 7 14 protons atomic number 14 O 7 protons atomic number 14 O 14 protons atomic number 7

For the following reaction identify the acid base conjugate acid and conjugate base CH3CH Li I HH II 1 base II acid III conjugate base IV conjugate acid 1 acid II base III conjugate base IV conjugate acid 1 base II acid III conjugate acid IV conjugate base 1 acid II base III conjugate acid IV conjugate base 1 base II base III conjugate acid IV conjugate acid III CH3CH3 IV Li

How many possible sublevels subshells are in n 4 32 O 2 4

Which of the following are transition elements Mercury Aluminum Chromium Lead

The electron configuration of carbon is 1s 2s 2p O 1s 2s 2p3 O 2p6 2s 2p6

How many electrons are in the following 127 531 52 53 54 74 2

Which element has the electron configuration 1s22s22p63s O Li Na O Mg AL 4

Which of the following are heterogeneous mixtures A mixture of AgCl s and H O 0 Cereal and milk NaCl aq A solution of hydrochloric acid in water

Question 31 How many valence electrons does boron B have

Question 22 Which of the following subshells is greatest in energy 4s 4p 4d

14 64 Draw the condensed structural or line angle formulas for th products of the following 14 4 14 6 a b O CH3 I CH CH C 0 CH CH NaOH Le H heat H O Heat

Which of the following are main group elements Copper Phosphorus Strontium Potassium

What is the symbol of the element X below 3416X2 OS 4

Identify the expected product for the following reaction BF3 B F 1 BF3 IV BF3

14 72 Write the IUPAC name for each of the following 14 6 a b O CH CH CH CH C NH O CH3 CH3 CH C N CH3

Members of the same group have similar chemical and physical properties because O they have the same charge Othey have the same number of valence electrons Othey have the same number of protons they have the same number of neutrons 27

2 or tertiary 3 amine 14 5 14 56 There are four amide isomers with the molecular formula C3H7NO Draw their con densed structural formulas and write the IUPAC name for each 14 6

References A steel cylinder cont mixture of nitrogen oxygen and carbon gases The total pres he tank is 1690 torr pressure exerted by nitrogen and oxygen and 540 torr respect What is the partial p n torr of the carbon dioxide in the mixtu Enter your answer t significant figures PCO Submit Answer to

Q 11 The rate of a chemical reaction doubles for every 10 C rise of temperature If the temperature raised by 60 C the rate of the reaction increases by A 16 times B 8 times C 32 times D 64 times E 4 times

What ions go into solution when potassium carbonate solid dissolves in water OK Co OK CO3 OK CO3 OK C 0 OK C

Provide the correct IUPAC name for the skeletal line bond structure shown here Stereochemistry is ignored Br J Br I 3 4 2 4 2 4 3 2 3 di tri sec iso tert cyclo X

The reaction of iodine chloride and hydrogen gas occurs in two elementary reaction steps as indicated below What is the best representation of the overall reaction step 1 ICI H HCI HI slow step 2 HI ICI HCI 12 fast a 21CI H 2HCI 12 Ob HI 21CI H 2HCI HI 1 c ICH H HCI HI d H HI HI 12 e HI ICI HCI 1

What is the pH of a 0 0017 M solution of the strong acid HBr aq 2 8 4 8 6 1 3 5

A solution of water and a nonvolatile nonionizing compound is placed in a tube with a semipermeable membrane on one side The tube is placed in a beaker of pure water What initial net effect will occur Water will flow from the beaker to the tube Water will flow from the tube to the beaker The compound will pass through the membrane into the solution Nothing will move through the membrane either way Equilibrium is immediately established

Which is the most stable carbocation O O CH CH

Which molecule undergoes E1 fastest in concentrated H SO4 HO OH O HO OH

Draw orbital sketches and build the models for a Ethene ethylene C H4 Each carbon in ethene has 3 regions gray pieces sp2 this molecule is trigonal planar the 3D structure is done with solid lines all in the same plane b Ethyne acethylene C H There is only one triple bond gray with regions above and below the internudear axis The piece already represents the two carbons of the triple bond just add the two hydrogens white spheres The piece without H represents 4 carbons The angles around each carbon are 180

3 2769 12 00 Which definition best describes polygenic traits OA traits that are carried on linked genes O B traits that are controlled by multiple genes OC traits that affect several features OD traits that express both alleles of a gene pair

7 Assign the configuration of the following chi HO CI COOH NH Br H N G

When carbon dioxide gas is dissolved in water increasing the temperature will solubility to a increase Ob decrease

What is the product of this reaction O H HO OH OH 1 BH3THF 2 H O NaOH

O D 4000 OH O 3000 2000 KAVENUMBERI 1500 1000 5 00

What is the symbol for the following element Atomic Number Z Mass Number A Protons Neutrons Electrons Symbol 55 133 blank1 blank2 55 55 133 Cs O 13355 Cs O 13355 Cs 133 54Xe

What is the LUMO in the molecular orbital diagram for 1 3 cyclohexadier

What is the major product of this reaction Br 1 equiv HBr 40 C

How many electrons does the following ion have 4 129 531

O O 140 CH3 CH 2 CH3 CH3 CH3 120 100 80 PPM 60 20

4 NaNO2 HCI 5 CuCN O 1 HNO3 H SO4 2 Br2 AlBr3 3 Fe HCI 4 NaNO2 HCI 5 CuCN O 1 Br2 AlBr3 2 HNO3 H SO4 3 Fe HCI 4 NaNO HCI 5 CuCN 1 NaNH2 NH3 2 NaNO2 HCI 3 CuCN 4 Br AlBra