Organic Chemistry Questions

writing a chemical equation from a description of the reaction Gaseous water and solid magnesium oxide are formed by the decomposition of solid magnesium hydroxide Write a balanced chemical equation for this reaction 0 4 X

12 37 What reagents would you use to perform each of the followin transformations or ol H do a b OH

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

A cell with a total of 0 2 osmol L is placed into a solution with a total of 0 3 osmol L switched from the previous question It is assumed that the osmotic particles cannot pass through the cell membrane Answer the following true or false questions a true b false Solvent is more concentrated in the cell Water will osmose out of the cell The cell will shrink and may look crenated Plant cells have a cell wall to protect them from dehydration caused by osmosis

2Mg s O g 2MgO s A college chemistry student is performing this reaction in a lab where magnesium is burned and combines with oxygen from the air to produce magnesium oxide The students burns 2 92 g of Mg and there is excess oxygen from the air They incorrectly calculated that the mass of magnesium oxide produced was 2 42 g Here is their work 2 92 g 40 3 g 24 3 g 1 mol 1 mol 2 mol X X 1 mol X 2 42 g 1 What did the student do wrong There is an error in their work Explain specifically what part is incorrect 2 pts 2 What recommendation s would you give to the student regarding showing their work There is an improvement that can be made to help them avoid this mistake in the future 2 pts

1 Hexyne is treated with sodium hydride followed by bromoethane Lindlar hydrogenation of the resulting product affords what final product Z 3 octene Z 2 octene E 3 octene E 2 octene H 1 NaH 2 CH3CH Br Lindlar s catalyst

DA OB OC OD DE OF ck the reactant to make the product using a Williamson Ether Synthesis reaction C A X E

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

Predict the Grignard reactants to make the product shown below 2 18 0 944

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

OA OB XX 4 OC Predict the final product of this 3 steps reaction OD M t N 3 Na NFL g hard

oc Provide the major organic product of the reaction below Y me Ly

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

Provide the major organic product of the reaction below Y O Ether O Alcohol O Ketone OR

Pick the reactant that will produce a secondary alcohol O A OB OC H 2 H 0 A secondary alcohol i s C D

i Y Product Select Product Select LAG 4 bit dit

CHUCH MOCI 2 1 0 a CH CH CH OH CH b CH CH OH c CH CH CH OH d CH CH CH CH OH OB

Predict the minding mactant which when used in excess will make A CH Br B CH MgBr C CH CH MgBr D CH CH OH OC 1 M of

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

COA OB OD OE d A P P 8 Lindler s catalyst C MESO M SO D RAPO NaOH E Na Ma

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

Predict the reagent OC Liv Al H Raney Mi B NORM DJ LIAM E Naod COM RAHM O NaOH

Predict the product s for the following reaction HS HH SH I O III ON M O II OH 1 NaSH 2 H O HO Min OH NaO H OH IV Hiling

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

T Predict the product O Aldehyde O Ketone O Alcohol O No reaction

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

ares the significance of Reagan s nomination of Sandra Day O Connor to become a ju preme Court MULTIPLE CHOICE Which of the following issues caused conservative groups to oppose the nomination of Sandra Day O Connor to the Supreme Court A B C D her position on abortion her position on deregulation her position on the Second Amendment her position on traditional family roles Pract

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

d 20 g If 90 g of sodium nitrate NaNO3 is dissolved in 100 g of water at 40 C then the solution is a Unsaturated b Super saturated c Saturated d Cannot be determined from the graph of water at 30 C

d Cannot be 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 contration Select 2 answers

Use the following balanced chemical equation to answer the questions below CaBr2 Na2SO4 CaSO4 2NaBr 1 How many moles of sodium bromide can be made from 5 moles of calcium bromide 2 How many grams of calcium sulfate will be made from 2 00 moles of calcium bromide 3 How many grams of calcium bromide will be needed to make 845 grams of calcium sulfate

Predict the products for each of the following D Pd D Lindlar

a b O d e f OH OH 3 Complete the following reaction scheme Give all product s and indicat major or minor and any relevant stereochemistry 60 points 4 points each Br Br dil HCI NaOEx heat H heat NaCN DMF HBr 8 H SO4 H PO4 heat

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

At which pH would Mn OH 2 be the most soluble For Mn OH 2 Ksp 1 6 x 10 13 Select one O a pH 13 0 O b pH 12 0 O c pH 11 0 O d pH 10 0 O e pH 9 0

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