Organic Chemistry Questions

What type of bonds are present in a triple covalent bond A 1 sigma bond and 2 pi bonds OB 3 pi bonds OC 3 sigma bonds D 2 sigma bonds and 1 pi bond

1 What is the H concentration of a solution that has a pH of 7 92 Be sure to include units 24 pts

If you are bombarded with one mole of photons with a wavelength of 300 nm what amount of energy are you being subjected to A 400 kJ OB 6 63 x 10 19 J C 4 00 x 10 10 kJ D 40 000 kJ

An alcohol was found to contain 60 0 carbon 13 4 hydrogen and the remaining mass was due to oxygen What is the empirical formula of the alcohol A C3H O B CH 30 QC CHO D C H60 Question 32 1 point Which of the following species is planar A NH3 B H3O G PE

What species is represented by the following information pt 47 n 62 OA Ag OB Pd C Ag OD Nd e 46

iii Draw the structure of 18 Crown 6

Identify the resulting resonance structure indicated by the curved arrows agdad 1 11 IV

Which of the following structures have 1 as a formal charge on an oxygen atom O 0 o

If the moles of KHP are 0 00756 and the volume of the sample is 25 00 ml What is the Molarity of NaOH if it is titrated with 15 32 ml 0 116 M 0 0004935 M 0 4935 M 0 000158 M

How many moles of silicon are in a 0 625 g of disilicon hexachloride Si2Cl6

What are the possible values of I if n 3 OA 0 1 or 2 OB 3 0 or 3 OC 0 1 2 or 3 D 10 1 2 or 2

Which of the following elements would have the greatest difference between the first and the second ionization energy A arsenic OB potassium C calcium D bromine

What ion corresponds to the following electron configuration Ar 11 five 3d orbitals OA Ni OB Fe OC CO3 OD Rh 4s

de That is the H concentration of a solution that has a pH of 9 4 Be sure to include units

Identify the most significant resonance structure s 01 Oll I and II LIVE 8 8 8 8 III IV

Determine the name for HCIO3 A perchloric acid OB chloric acid C hydrochlorous acid OD hydrochloric acid

Cane cis 3 ethyl 1 2 epoxycyclope

11 Write the correct IUPAC A OH CH CH CH3 A

Aspartame an artificial sweetener used in Equal and diet beverages has the following structure Identify the functional groups in Aspartame NH baz O1 aromatic II amine III carboxylic acid I alkene II amide III alcohol I aromatic II amine III ester 1 alkene II amine III anhydride 1 aromatic II amide III carboxylic acid OH

1 2 3 alcohols can be differentiated with Br water Cu 573 K Libermann test

I II III Identify the class of diene of these 4 compounds D Solution and Explanation IV I The double bonds here are separated by 2 single bonds This would be an isolated where the pi orbitals do not overlap This is not a conjugated system II This is a conjugated diene with 2 pi bonds separated by a single bond III This is an isolated diene as well as the double bonds are separated by 2 single bo IV This is a conjugated diene The 2 double bonds are separated by only one single c

D C OA OB C C Z Pick the Nitrogen atom s that is are strongly basic C N A B

What is the pH of a 0 00065 M solution of HCI

ii Write the correct IUPAC names OH Q CH CH CH3 A B OCH CH3 C OCH CH OH D OH

Balance the following chemical equation Note Do not leave any blank If the stoichiometric coefficient is 1 put a 1 in the space i Na CO3 aq CaClaqi CaCO3 s NACI

Classify the following molecules as hydrophilic hydrophobic lipophilic or lipophobic Each molecule should have two classifications Drag the appropriate items to their respective bins hydrophilic OH HO HO hydrophobic OH HOO lipophilic HO HO HO 0 NH HN NH lipophobic Reset NH Help

II III Identify the class of diene of these 4 compounds D Solution and Explanation IV 1 The double bonds here are separated by 2 single bonds This would be an isolated d where the pi orbitals do not overlap This is not a conjugated system II This is a conjugated diene with 2 pi bonds separated by a single bond III This is an isolated diene as well as the double bonds are separated by 2 single bor IV This is a conjugated diene The 2 double bonds are separated by only one single ca carbon bond and the pi orbitals overlap here

Mother said little Pearl the sunshine does not love you It runs away and hides itself because it is afraid of something on your bosom It will not flee from me for I wear nothing on my bosom yet Nor ever will my child I hope said Hester And why not mother asked Pearl stopping short Will it has not come of its own accord when I am a woman grown What is the implicit meaning conveyed by Pearl in the excerpt O Pearl notices that the scarlet letter on her mother s bosom has paved the way for lack of sunshine in her mother s life Pearl realizes that the scarlet letter on her mother s bosom is unique to her mother which other women in town do not have Pearl admires her mother s needlework of the scarlet letter and wants one for her when she reaches adulthood O Pearl Is afraid of the scarlet letter on her mother s bosom and expresses it subtly

Butyl acrylate can be used to make copolymers with application in adhesive industry When butyl acrylate is subjected to the following reaction the most likely product is Jo OH HO O gon eto w O Began Oet OHO 1 ME NaOet EtQH 2 H O A e HO O OH OH

Classify the compound below aromatic O antiaromatic

OCH CH OH

If 75 kJ of heat is transferred to 1200 g liquid water at 36 C what would the new temperature of the water be The specific heat capacity of liquid water is 4 186 J g C O A 15 C OB 51 C O C 100 C D 36 C

NH NH This molecule can be classified as Select electron in the molecule is Select and th

A student is trying to convert nanometers into meters and she knows that there are 1 10 nm in 1 m She 1 m 1x10 nm 1 m expresses this ratio as either 1x10 nm This ratio is called a n O molar ratio O unit O dimensional factor O conversion factor O Avogadro factor or

Which of the R groups displayed below for the following compound can induce muscarinic ag activity R O Select one a Only I b All of them c I and II d II and III 1 Methyl B groups Il Amino Ill Phenyl

2 Identify each of the following types of reactions and then name the family of the product formed 4 marks a CH3CH CH CHO and an oxidizing agent b CH3COOH and CH3CH OH

N CH3 The molecule above can be classified as Select Nitrogen atom is Select D and th

3 At 20 C a saturated solution holds 65 2 g of KBr in the mass percent of KBr in water 45X2 100 165 29 652 165 2 X 100 39 467 of KCBV 4 If the temperature for the solution in question 3 is raised to 60 C but no more solute is added would you expect the solution to be saturated unsaturated or supersaturated Why

This molecule can be classified as Select electron in the molecule is Select and the total pi

ng documents is NOT required for a limited agen agreement O a Notice of Commencement b Exclusive Right to Sell Listing Agreement Agency Disclosure O c Limited Agency Agreement d Real Estate Purchase Contract

1 Which of the following terms is defined as the process whereby a nonowner can gain ownership of property by occupying it in hostile continuous open and notorious possession O a Recovery Act b agency law c mechanic s lien d adverse possession

What is the predominant product in the following scheme L OCH 3 I OCH 3 X sel ilom OH OCH 3 OCH 3 OH NaOet etOH H O A

3 Draw the reactants and products for the reaction below 4 marks a Consider how it is possible for two products to form in this reaction and identify the major product giving your reasons for both b What type of reaction is this classified as 2 methyl 2 heptene HOH 2 methyl 2 heptanol 2 methyl 3 heptanol

Choose the major product G D 18 Choose the minor product s No minor products expected 8

3 Explain how you would make 500mL of a 0 25 mol L solution of HCI from a 3 mol L stock solution Explain how much HCl and how much water you would need to add to make your final solution Show your work for full marks 3

Which of these is least likely to be produced by the Acetoacetic ester synthesis or oor

16 40 Rank the following dienophiles from least reactive to mos reactive in terms of reactivity in a Diels Alder reaction O

hich of the following is NOT a stereospecific reaction cyclohexene reacts with H with Pd C 1 butene reacts with HCI trans 2 butene reacts with Br2 in the dark cis 2 pentene reacts with Cl in the dark

C Problem Br H What are Ha and Hb A Enantiomers Hb B Enantiotopic protons C Homotopic protons D Diastereotopic protons E Chemically equivalent D Solution and explanation The answer here would be D diastereotopic protons In order to figure out the relationship between protons a and b you can take the shortcut mentioned above Since there is a chiral center in the molecule the protons bonded to the carbon would not be chemically equivalent As mentioned earlier if the protons are not homotopic or enantiotopic they are not chemically equivalent The opposite of this is true well If they are not chemically equivalent they are neither homotopic or enantiotopic This eliminates choices b c and e Ha and Hb would not be enantiomers because enantiomer term used for isomers not protons If Ha and Hb produced enantiomers during the replace test they would be considered enantiotopic protons Therefore the only option left is d diastereotopic protons

What is the H concentration of a solution that has a pH of 9 4 Be sure to include