General organic chemistry Questions and Answers

Please select the compound with the best leaving group below Select one F O OH Br

entify the likely mechanism for the reaction below a SN2 mechanism is identified Drag N A into every field because there are no individually occurring reaction steps a SN1 mechanism is identified Drag the appropriate reaction mechanism steps into the empty fields labeled 1 to 5 in the rder they occur If there are less then 5 mechanistic steps then fill in the remaining fields with the draggable item N A 2 3 4 5 loss of LG N A Br HS Br rearrangement e H transfer SH Nu attack

Identify the hybridization of a carbocation OA SP B SP2 O C SP3 OD SP4 OE Both A and B

3 Provide valid syntheses for the following compounds from the indicated starting materials a b HO

When arachidonic acid reacts with hydrogen to form a saturated fatty acid indicate the stoichiometry of the reaction and the product that is formed If the stoichiometry of H or the product is not integral enter a fraction i e 3 2 arachidonic acid Reactants H Product

What is the difference between the EAN value of Fe CO 5 Fe CO 2 NO 2

Br 15 Select one O EA O EA O E O E4 HS Br HS reaction ordinate reaction ordinate reaction ordinate

How many chiral carbon atoms does the compound below conta OH HO HO OH OH

Pick the reagents D PCC E P 12 A BH3 THF H202 NaOH B Na2Cr2O7 H2SO4 C LiAlH4 Step 1 Select 1 Step 2 Select 2

Please select all carbocations below that would rearrange to a more stable carbocation Select one or more

Which of the carbocations below would rearrange via a H shift to a more stable carbocation Please select all that apply Select one or more O 0 O

What is the relationship of the two molecules drawn below 2 Select one O diastereomers O constitutional isomers O same O conformers

Which of the following is a carbene A CH2 CHO OB CH3CH2 OC CC12 OD CH3CH2 OE NCO

Which of the halogens below undergoes free radical halogenation with ethane most rapidly OA Chlorine B Florine C lodine D Bromine E Both Florine and iodine

Which of the Newman projections below illustrates the least stable conformation Select one O O O HI H H CICH3 H H H x CH3 H3C CI IH H CI H3CH CI H

Draw the least stable conformation of cis 1 3 dimethylcyclohexane In which position are the substituents Select one O both axial O one axial one equatorial both equatorial

19 when performing a titration 45 00mL of aqueous Strontium hydroxide is required to neutralize 49 80mL of 0 800M phosphoric acid what is concentration of strontium hydroxide Solution 0 495 M 1 328 M 0 794 M 173 00

Which of the following alkenes is the most stable Select one O Z 2 4 dimethyloct 3 ene O Z 3 4 dimethyoct 3 ene O Z 2 5 dimethyloct 3 ene O Z 3 5 dimethyloct 3 ene

Some food products are partially hydrogenated This means that only a portion of the original unsaturated fatty acids have hydrogen added to saturate the original unsaturated bonds When linoleic acid is partially hydrogenated what fatty acids will be found as products oleic acid Olinoleic acid stearic acid D palmitoleic acid Opalmitic acid linolenic acid

Provide the major organic product of the reaction shown OA OB OC C U OH 1 Nall 2 CH CH CH CH 1 D

The arrows and yellow colored blocks indicate the elements u Be BCN OF N Na Mg Al Si P S Cl A K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br K Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I X Cs Ba Ls Hf Ta W Re Os Ir Pt Au Hg Tl Fr Ra Ac A representative B transition metal C noble gas Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr Pb Bi Po At R

Identify the intermediate in the halogenation of alkanes OA Dimer B Radical O C Cation O D Anion OE None of above

The correct IUPAC name of CH 3 I CH CH3 CH3CH CHCH CHCH CHCH CH3 CH CH CH3 A 3 methyl 7 ethyl 5 propylnonane B 3 ethyl 7 methyl 5 propyldecane C 3 ethyl 7 methyl 5 propylnonane D 3 ethyl 7 propyl 5 methylnonane E None of above

2 11 If yield for following reaction is 75 0 75 0 and 30 0g of NO are consumed in reaction how many grams of nitric acid HNO3 aq are produced 3 NO g H O 1 27 NO aq NO g 20 59 46 29 36 59 21 49

Which species is the most stable A CH3 B CH3CH C CH3 CH D CH3 3C E None of them OA B Oc D

Draw the most stable conformation of trans 1 4 dimethylcyclohexane In which position are the substituents Select one O both equatorial O one axial one equatorial O both axial

In the complete combustion of heptane how many moles of water are produced 8 5

Avogadro s Number 1 2 57 x 1011 atoms of silver equal how many moles of silver 2 2 845 x 1012 potassium atoms equal how many moles of potassium 3 0 0524 moles of H O equal how many molecules of water 4 347865 atoms of xenon are equal to how many moles of Xe 5 3 25 x 1025 molecules of HCI gas equals how many moles of HCI 6 How many moles of H SO4 do you have if there are 1 64 x 1012 molecules of HeSO

The compound below may contain a chirality center Determine its configuration i H NH OH Select one O the compound does not have a chirality center O R configuration

Identify the likely mechanism for the reaction below If a SN2 mechanism is identified Drag N A into every field because there are no individually occurring reaction steps If a SN1 mechanism is identified Drag the appropriate reaction mechanism steps into the empty fields labeled 1 to 5 in the order they occur If there are less then 5 mechanistic steps then fill in the remaining fields with the draggable item N A 1 2 3 4 5 OTS Nal NaOTs

A product Select product II Select B step i H SO heat I C ii H Pr D II E

Which reagents could be used to perform the following reaction A NaOCI B PCC C NazGr O H SO4 D All reagents will work E A and B F A and C OA OB OC LOH OD OE H

6 Isomers have identical physical and chemical properties 7 CH CHCH CH is a formula for a saturated hydrocarbon 8 The physical properties of alkynes are very different from those of alkenes 9 2 butyne can exist as cis and trans isomers 10 A phenol is any aromatic ring that is bonded to another carbon chain

Which of the carbocations below would shifts to a more stable carbocation Please select all that apply Select one or more Xo

Please select the reaction condition s required to achieve the following transformation Hint Transformations may require one two three or four reaction steps The number of steps is indicated by the number of arrows in the scheme Select one or more OHBr ROOR 13 excess Br2 OH2 Pt 11 HBr HgSO4 H3O Br2 1 03 2 water excess HBr 1 9 BBN 2 H202 NaOH OH2 Lindlar Na NH3 liquid 1 excess NaNH2 2 water 1 NaNH2 2 alkyl iodide

A. What is the hybridization of the central atom in AlF3? Hybridization What are the approximate bond angles in this substance? Bond angles B. What is the hybridization of the central atom in BeF2? Hybridization What are the approximate bond angles in this substance? Bond angles

This question has multiple parts. Work all the parts to get the most points. a Polarity of bonds in CH₂Cl₂ C-H: C-Cl: Which of the following molecules have net dipole moments? For the molecules that are polar, indicate the polarity of each bond and the direction of the net dipole moment of the molecule. Consider bonds nonpolar if they have an electronegativity difference of 0.4 or lower. Dipole with negative at C Dipole with negative at H

The pressure in an experimental container of Campbell's primordial soup is 6.00 atm. The atmosphere is 25.0% 0₂. 15.0 % N₂, and the rest is H₂. What is the partial pressure of H₂? A. 0.900 atm B. 1.50 atm C. 3.00 atm D. 3.60 atm E. 6.00 atm

Answer the following about drawing the attractive force between a water molecule (H₂O) and a molecule of phosphorus trichloride (PCI). The water molecule is and the PCI3 molecule is a. diatomic b. linear c. bent d. pyramidal e. tetrahedral f. planar trigonal 4

1. List the two major functional groups present in the molecule. 2. Provide the molecule's name. 3. If there's anything that you debated about, you can discuss it. The hint is to find the higher priority functional group and treat the rest of the molecule like a substituent (or branched substituent)

Given the balanced equation for photosynthesis: C6H12O6 (s) + 602 (g) 6CO2 (g) + 6H2O (1) AH-2804 kJ How many moles of H₂O will be produced when -1402 kJ are produced?

The value of AH° for the reaction below is -336 kJ. Calculate the heat (kJ) released to the surroundings when 23.0 g of HCI is formed. CH4 (g) + 3Cl2 (g) → CHCl3 (1) + 3HCI (g) 177 kJ 2.57 × 10³ kJ 70.7 kJ 211 kJ -336 kJ

Meso compounds have chiral centers but the compound itself is achiral due to an internal plane of symmetry. Which one of these is (are) meso compounds? Build its model

Order the following ions from strongest to weakest base. Strongest 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. Second strongest Weakest base

Which of the following series of reactions represent how CF2Cl2 contributes to the destruction of the ozone layer? CF2Cl2 + energy (UV radiation)→ CF₂CI+ + Cl. CI. + 03- CI+ 02 CI+ CI+ 02 CF2Cl2 + energy (UV radiation)→ CCl₂F* + F. F. + 03- FO2 + O FO₂+OF+03 CF2Cl2 + energy (UV radiation) → CF2CI+ CI. Cl. + 03- CIO2 + 0. CIO₂ + CI. + 03 CF2Cl2 + energy (UV radiation)→ CCI₂F. + F. F. + 03- FO. + 02 FO+OF+ 02

Draw the Lewis structure and upload images of the following molecules. Label them with the correct chemical name (1 pt each) and write the name of the molecular geometry (1 pt each). 1) SeO₂ 2) CF4 3) CO₂

Consider the reaction. AgNO3(aq)+NaCl(aq) → NaNO3(aq)+AgCl(s) What is the total ionic equation for this reaction?

Calculate the pH of a solution that is 0.540 Min pyridine (C5 H5N) and 0.460 M in pyridinium chloride (C5 H5NHCI).

What are the products to the reaction depicted below, assuming that CH3CO₂H is the acid? CH3CO₂H (aq) + H₂O (1) CH3CO₂H₂ (aq) + H3O+ (aq) CH3CO2- (aq) + -OH (aq) CH3CO₂ (aq) + H3O+ (aq) CH3CO₂H₂(aq) + -OH (aq)

With respect to decarboxylation of pyruvate, it does not occur in yeast it requires biotin in animals FADH2 and NADH are required it produces acetyl-CoA when there is abundant NAD+ all of the above are true none of the above are true