General organic chemistry Questions and Answers

How many electrons does the s subshell contain

How many grams of AgNO3 are needed to make 250 0 mL of a solution that is 0 135 M A 5 73 g OB 0 0917 g OC 0 174 g OD 91 7 g

How many electrons does the p subshell contain Question 60

Determine the formal charge on each atom as indicated for the structure below 1 1 11 0 III 1 1 1 1 1 III 0 1 0 1 III 1 O1 1 11 0 III 1 1 0 III 1 H H C S C N H

Which one of the following is the correct bond angle between atoms adopting a trigonal planar geometry A 120 B 180 C 109 5 OD 90 B

For the structure shown in the box below identify corresponding correct resonance structures I and II II and III III and IV I and III Iland Y 11

What is the correct IUPAC name for the following molecule Br CI 2 bromo 5 chloro 4 methyl hexane 5 bromo 2 chloro 3 methyl hexane O 2 chloro 3 methyl 5 bromo hexane 2 bromo 4 methyl 5 chloro hexane

The original method of making ammonia was to react calcium cyanamide with water according to the following reaction CaCN s H O l CaCO3 s NH3 g Which of the following is the most correct set of stoichiometric coefficients to balance this equation OA 1 3 1 2 OB 1 1 1 1 C 2 6 2 4 OD 4 2 6 2

the reaction 3C1 g 6NaOH aq 5NaCl aq NaClO3 aq 3H O 1 how many grams of sodium chloride can be produced from 37 2 g of NaOH A 54 4 g B 45 3 g C 65 2 g D 21 2 g

Which bond is the most polar OA H C OB H Se OC H N OD H O

Given the equation 2 Al s 3 Br Al Bro s If you have 3 0 moles of Al A You need 3 moles of Br to react completely producing 1 mole of Al2Br6 B You need 1 5 moles of Br to react completely producing 0 5 moles of Al2Br6 C You need 4 5 moles of Br to react completely producing 1 5 moles of Al Br D You need 6 moles of Br to react completely producing 2 moles of Al2Br6

You have purchased a piece of highly pure iron foil for 55 00 The foil is 50 0 mm square and 1 00 mm thick What is the cost per gram of foil Density of iron 7 874 g cm OA 2 79 gram B 0 280 gram C 5 50 gram OD 0 360 gram

Pick the antiaromatic molecule Select Number of pi electrons in A is Select Number of pi electrons in B is Select Number of pi electrons in C is Select Number of pi electrons in D is Select A B C N H D

entify the structure that shows the correct placement of all lone pairs for the compound illustrated in the box below 01 H3N O H H3N 11 H H3N OH H3N 0 H H3N i H IV H N O H V

What happens to the hydrogen ion H concentration as an aqueous solution becomes mor acidic 15 a Remains the same b Increases c Decreases d Cannot be determined

Choose the correct IUPAC name for the following compound mosha 3 4 dimethyl 7 nonene 6 7 dimethyl 2 nonene 6 7 diethyl nonene 6 7 dimethyl 2 nonane

Complete the table by providing the missing components either chemical formula or systematic name not common name Chemical Formula NH4 3PO4 HMnO4 aq P2S5 NiCl3 Ba3P2 Systematic Name Ammonium phosphate Sulfur monochloride Ammonium sulfide Permanganaic Acid Strontium iodide Disulfur monoxide Hydrosulfuric acid Sulfurous acid Boron trichloride

9 Vinegar has a pH around 5 Stomach acid has a pH around 2 How does the H in t stomach acid compare to that of vinegar a 1000 times lower b 1000 times higher c 3 times lower d 3 times higher

The above molecule can be classified as O Aromatic O Antiaromatic Nonaromatic

Determine the oxidation state of P in PO3 A 3 OB O OC 2 OD 3

Which of the following best describes the variation of electronegativity with respect to an element s position on the periodic table A Decreases across a period increases down a group B Decreases across a period decreases down a group C Increases across a period decreases down a group D Increases across a period increases down a group

NI their meanings below The cashier was driving her boss up the wall with her constant lateness and unprofessionalism The boss knew that cashiers were a dime a dozen so he immediately fired her IDIOM 1 Type here

For the following compound identify the indicated lone pairs as localized or delocalized H H 1 both localized II both localized 1 both localized II one localized and one delocalized I one localized and one delocalized II both localized 1 one localized and one delocalized II one localized and one delocalized 1 both delocalized II both delocalized

Identify the indicated functional groups in the following compound 1 alcohol II amine III thiol 1 ester II ketone III thiol 1 alcohol II amide III sulfide 1 ether II amide III thiol 1 alcohol II aldehyde III sulfide HO

The central iodine atom in the ICl4 ion has nonbonded electron pairs and bonded electron pairs in its valence shell OA 4 2 OB 0 4 O93 1 OD 2 4

A compound is 78 90 carbon 10 59 hydrogen and 10 51 oxygen The molar mass is 456 71 g mol What is the molecular formula of the compound A C 0H56010 B C10H160 C C7H110 D C30H4803

B C C D A B C Only A Predict all the possible organic products of the following reaction A CH OH H SO4 B D

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

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

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

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

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

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

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

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

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

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

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