General organic chemistry Questions and Answers

What is the major product obtained from the following reaction Br t H O 01 Br 0 IV OH HO Br 11 Br Br Br IV OH

How many ATOMS of carbon are present in 9 90 grams of carbon tetrachloride Answer Submit Answer Try Another Version 1 item attempt remaining

LIE The element Erbium Er has five abundant isotopes 164 Er 166Er 167 Er 168 Er and 170 Er The difference among these five isotopes is the A number of neutrons OB charge in each proton C number of atoms in one mole OD total charge OE charge on each electron

How many He atoms are there in a 70 4 gram sample of He atoms Submit Answer Try Another Version 4 for them

1 How many MOLECULES of dinitrogen tetrafluoride are present in 2 00 grams of this compound 2 How many GRAMS of dinitrogen tetrafluoride are present in 1 51x1022 molecules of this compound Use the molecules grams

1 How many GRAMS of sulfur are present in 2 36 moles of sulfur dichloride 2 How many MOLES of chlorine are present in 3 31 grams of sulfur dichloride grams moles

The element fluorine forms a n The symbol for this ion is The number of electrons in this ion is with the charge and the name is

OB Choose the major product of the following reaction X X X X OC ROOR D

How many grams of sulfur are present in 1 66 moles of Disulfur decafluoride Answer

A M Ramey NI B Na BM CH CH MgBr D CH CH CH MgBr E PCC F LIAIH G H H O Reagent 1 Select Peagent 2 Select L 4 7 Reagent 3 Select

The isotope lithium 7 has a mass of 7 02 amu and a percent natural abundance of 92 6 The isotope lithium 6 has a percent natural abundance of 7 42 What is the mass of lithium 6 Answer

Lipids are naturally occuring molecules that are O belonging to the class of proteins O non soluble in organic sovents soluble in nonpolar organic solvents O none of the mentioned

Predict the product s for the following reaction HO OI O III ON OCH 3 H3CO OH CH3OH H SO4 H3CO OCH3 HO IV OH

M 1 Methylcyclopentanol is classified as a primary alcohol O a secondary alcohol O a tertiary alcohol O a phenol O an enol

Pick the right IUPAC name O Z hept 4 en 2 yne O Z hept 3 en 5 yne O E hept 3 en 1 yne O E hept 4 en 2 yne

CaCO3 aq 2HCl aq CaCl2 aq H2O 1 CO2 g Before the Tums CaCO3 is consumed what is the starting pH of the stomach solution if we model it as 20 mL of a 0 50 M HCl solution a 0 020 b 0 30 C 0 40 d 1 7 e 2 0

Pick the right IUPAC name OM O Z hept 3 en 1 ol O E hex 3 en 1 ol O E 4 5 dimethylhex 3 en 1 ol O E 2 3 dimethylhex 3 en 6 ol

Choose the major product of the following reaction O 2 heptene O 2 3 heptene O E 2 heptene hentane Hy Lindler s catalyst

d Cannot be determined 3 How many grams of potassium chlorate KCIO3 can be dissolved in 100 mL of water at 30 C a 63 g b 36 g c 13 g d 10 g concentration Select 2 answers

Which of the following compounds is chiral O O O CI H C CI Gr H CI CIH ci HIDIH CI CLOH CH HOICICI H CH CH C CH3 CH

h X Ju light LOH 1 NaOH 2 HBr 40 C Heat

An aqueous solution has a measured pH 2 0 What is the H in this solution Pay attention to significant figures Select one a 0 01 O b 0 0 O c 0 010 O d 0 0100

6a Draw the structure of C6 7a Draw the structure of CH3CHCH2 8a Draw the structure of C6H6 9a Draw the structure of CHF3 10a Draw the structure of CF3COOH 6b How many single double and triple bonds are there 7b How many single double and triple bonds are there 8b How many single double and triple bonds are there 9b How many single double and triple bonds are there 10b How many single double and triple bonds are there

A solution is made by dissolving 13 7 mL of ethanol C H6O d 0 790 g mL in enough water to make a 187 mL total volume solution The molarity M of ethanol in this solution is M Write your answer with 3 significant figures i e 1 23 M

Based on the structure of moclobemide shown below which of the following statements is CORRECT CI ZI Moclobemide N O Moclobemide has no acidic functional group and two basic functional groups O Moclobemide has one acidic functional group and two basic functional groups O Moclobemide has no acidic functional groups and one basic functional group O Moclobemide has one acidic functional group and one basic functional group

In the answer choices below a solid line represents a covalent bond and a dashed line represents intermolecular attraction Which of the following shows a hydrogen bond Select one O H CI H H CI H CI H H 0 H none of these all of these

What is the conjugate base of HSO4 Select one a SO4 b H SO4 c H3SO4 d OH e HSO4

2 Identify the oxidation and reduction reactions in the following reactions NH3 g O2 g NO g H O 1 I

Which one of the following should have the lowest boiling point Select one a C3H8 b C12H26 c C6F6 d C6H12 e 6H6

In a lab 4 52 liters of oxygen O2 are reacted with excess Ca The calcium oxide CaO produced is massed at 21 4 grams What is the percent yield 106 O94 7 73 8 Zbao 47 3

CH CH CHCH NHCH CH CH CH OQ CH CH CHCHCOCCHCHCH CHCOCCHI CH CH comprecision CH CHI CH NH CH CH CH CHCHCOH CH carboxylic acid ester anhydride amide none of the above

When IONIC substances dissolve the IONS When COVALENT substances dissolve the ATOMS within the solute arate stay together

The diagram below shows a voltaic cell The anode is Component C Electrode A Select one Direction E Electrode A Electrode B Component C Component D Direction E Component D Direction F Electrode B Direction of electron flow Direction F

At a temperature of occupies 18 8 L at 751 torr Write your answer as 123 C C 0 326 mol of CO gas

5 Provide an arrow pushing mechanism that accounts for the following transformation l OH H cat 10 12 HO Premant SESON O

An ideal solution is one in which the intermolecular forces IMFS between solute and solvent are the exact same strength as the IMFS in the two pure substances In an ideal solution AHsoln 0 Based on this information which of the following statements is true Select one O a An ideal solution can form if the entropy of mixing is negative ASmix 0 O b An ideal solution can never form O c An ideal solution can form if the entropy of mixing is positive ASmix 0 O d An ideal solution must form under all temperature regimes

For the elementary reaction NO3 CO NO2 CO2 the molecularity of the reaction is Select one O a 2 k NO3 CO O b 2 k NO3 CO NO CO2 O c 4 k NO3 CO NO CO O d 4 k NO2 CO2 NO3 CO QG 2 KINO and the rate law is rate

What is the partial pressure in atmospheres of H if a mixture has 5 0 moles of CO2 3 0 moles of N2 and 1 0 mole of H The container has a total volume of 5 73 L at room temperature of 25 00 C Your answer should have two significant figures round your answer to one decimal places Use R 0 08206 L atm mol K Provide your answer below

Draw a Lewis structure for NO3 in which the central N atom obeys the octet rule and answer the following questions based on your drawing The number of unshared pairs lone pairs on the central N atom is The central N atom forms The central N atom forms single bonds double bonds

In a very abstract way hexaphenylbenzene was synthesized by putting all the following reagents together catalysts extra acids and bases not shown Based on this information and i stoichiometry the overall synthesis had more 3 Phi 2 r Ph a an equal number of additions and eliminations Ob eliminations Phi Ph CI Ph PPh Ph JFX SCH H4N O N Ph OH Ph additions Fe Br PH Ph Fh Ph Ph C 0 0 Fe 2 HBr 5 H O HC1 H

The average bond order is the number of bonds between two atoms taking into account resonance Draw a Lewis structure for the nitrite ion and answer the questions below 1 There are equivalent Lewis structures for NO number

What is the major product of the following reaction A B C D Compound a Compound b Compound c Compound d H O HgSO4 H SO4 O O

11 Provide names for the following structures 4 pts C1 si de re CH3 OH 2

2 Chlorine 36 has Protons Neutrons ways to write out isotope Chlorine 36 2 pts electrons What are the other 3

c b a a H3C c H3C LOH OH b H3C d OH structures CH3 CH3

10 Using Boyle s gas law and the following data provide the final pressure Show all your work for full credit 2 pts Initial volume 360 mL initial pressure 2 25 atm final volume 0 5 L

Answer the questions in the table below about this molecule OH What is this molecule s chemical formula Note write the simplest molecular chemical formula in which each element symbol appears only once How many CH3 CH and CH groups are in this molecule 0 CH3 CH

17 Ni CN 2 Ni CN 2 H CO3 NICO3

3 N N metyl N syklopentylsykloheksanamin N metyl N sykloheksylsyklopentanamin N pentyl N metylheksanamin sykloheksylsyklopentylmetylamin 4 H N N etylanilin N etylheksanamin N etylsykloheksanamin N sykloheksyletanamin N etylsyklopentanamin What is the name of the compound

b Convert the following measurements ml 5 0 ml 25 0 g kg 0 5 mm mm 0 64 ml ml 33 0 mg mg 78 0 mm mm