Organic Chemistry Questions

CH3 CH cha 1 CH3 60 CHO CH2 C CH C CH2 CH2 CH 1 CH 5 3

Which of these can not react with a nucleophile O CH3CH CH O OH BH3 H3C CH CI

Question 6 Given the formula K C 273 What Kelvin temperature is equal to 73C

Question 3 As a substance changes from a liquid to a gas the average distance between molecules increases No answer text provided remains the same decreases

A person has 787 3mL of a 3 5M KNO3 solution How many moles of potassium nitrate KNO3 are present in the solution Round to 2 decimal places The next question will ask you to upload your work for this problem

Fully balance the half reaction 2 1 Mn I MnO in base What is the sum of the coefficients 1 5 2 11 3 12 4 14 5 9

A scientist mixes 138mL of 1M copper II chloride with excess aluminum metal What mass in grams of aluminum chloride would form Round to 2 Decimal Places Reaction 3CuCl2 aq 2Al s 2AlCl3 aq 3Cu s

Question 5 Which substance has no definite shape but does have definite volume O AICI3 s O Cl 8 O CCL 1 O NaCl s

Question 1 Which phase change is exothermic solid to liquid liquid to gas liquid to solid solid to gas

Question 7 Which phase change is endothermic gas to liquid liquid to solid gas to solid liquid to gas

Which unit will be the nucleophile in the following reaction BrCl CH OH CH3OH Cl from BrCI Br from BrCl OCH 30 Br OCH 3

What mass in grams of solute would be present in 7 13L of a 1 09M copper II chloride CuCl solution Round your answer to two decimal places

Question 4 Which segment of the graph represents a time when both the solid and liquid phases are present Temperature C AB DE OEF BC B C Time minutes E F

What is the major product of the reaction below O O OH OH OH OH OH OH 1 NaBH4 2 H O

PV Given the equation T P pressure mm Hg V volume mL T temperature K P2V T A gas has a volume of 1000 mL at a temperature of 20 K and a pressure of 760 mmHg What will be the volume in milliliters when the temperature is changed to 40 K and the pressure is changed to 380 mm

Which of the bonds pictured in the following diagram is the strongest Reactants H H TH C H 413 C C H O H C O 14 O H 463 Products OEC H H 436 14 H 14 11 CEO 1072

Question 1 Which phase change is exothermic O solid to liquid Oliquid to gas O liquid to solid O solid to gas

When 2 methyl but 1 ene is reacted with which of these reagents a chiral compound is produced 1 BH3 THF 2 H O2 NaOH 1 Hg OAc 2 H O 2 NaBH4 H Pt C ethanol 0 C HBr CCl4

Which of the following molecular compounds have resonance structures a CO b Pl3 c SeO d HOBr As in c As in a As in d As in b

Question 2 Which portions of the gram represent times when heat is absorbed and potential energy increases while the temperature and kinetic energy remains constant Temperature C B CD and DE AB and BC AB and CD BC and DE C D Time minutes 2 pts E

What volume of a 0 166 M potassium hydroxide solution is required to neutralize 18 0 mL of a 0 309 M perchloric acid solution mL potassium hydroxide

UMB CELLULAR RESPIRATION Date Per Directions Read each question and circle the correct answer After answering all questions color the picture using the colors that correspond to each correct answer You may color unnumbered sections of the picture any color you like Question Choice A Choice B 1 Which of the following is the process of breaking down glucose sugar and converting it into energy in the form of adenosine triphosphate ATP 2 Most steps of cellular respiration take place in which part of the cell 3 What are the products of cellular respiration 4 What are the reactants of cellular respiration 5 In which stage of cellular respiration is glucose sugar broken down 6 In which stage of cellular respiration is energy used to produce ATP 7 In which stage is carbon dioxide released and you get rid of it by exhaling 8 What is the main product of cellular respiration 9 Respiration is respiration is and cellular 10 Which statement is false 11 Which statement is false 12 Which statement is true cellular respiration red chloroplast green glucose water and oxygen blue oxygen and glucose black stage 1 glycolysis red stage 1 glycolysis blue stage 1 glycolysis green glucose black gas exchange energy production green Plants and animals carry out cellular respiration red Name Carbon dioxide is a waste product of cellular respiration black All living things need energy yellow photosynthesis orange mitochondria black carbon dioxide water and ATP green carbon dioxide and glucose green stage 2 Krebs cycle yellow stage 2 Krebs cycle yellow stage 2 Krebs cycle red ATP orange energy production gas exchange black Plants do not carry out cellular respiration black Choice C active transport yellow nucleus blue oxygen carbon dioxide and ATP yellow carbon dioxide and water orange stage 3 electron transport chain black stage 3 electron transport chain green stage 3 electron transport chain yellow Cellular respiration releases energy for cells to use orange Producers make their own food and do not carry out cellular respiration green carbon dioxide green glucose production breathing yellow Energy is stored in glucose and is released as ATP orange Only animals perform cellular respiration green Cellular respiration and breathing are the same thing orange

Why do we add sodium chloride to the organic layer in extraction Why do we add magnesium sulfate in extraction

What are the total number of occupied principal energy levels in at atom of oxygen in the ground state 6 O 2 8

Question 9 Balance the following equation H H O Fe Answer number What type of chemical reaction is this synthesis decomposition single replacement or double replacement How many grams of H will be produced from 59 6 grams of H O Fe OH 3 with units and element

An aqueous solution of nitric acid is standardized by titration with a 0 140 M solution of barium hydroxide If 16 7 mL of base are required to neutralize 28 3 mL of the acid what is the molarity of the nitric acid solution M nitric acid

Which element is classified as a halogen ON

Question 7 Which electron dot symbol represents an atom of chlorine in the ground state 01 3 2 4 CI 1 2 CI 3 2 pts ci 4

pes of Bonds Valence eview arted May 11 at 2 09pm Quiz Instructions his assignment has 22 multiple choice questions and will automatically submit at the end of today s class period Question 1 In the ground state all atoms of Group 13 of the Periodic Table have the same number of nuclear particles electrons occupied principal energy levels valence electrons 2 F

Review tarted May 11 at 2 09pm Quiz Instructions This assignment has 22 multiple choice questions and will automatically submit at the end of today s c Question 3 What is the atomic number of an atom with six valence electrons 8 12 6

eview arted May 11 at 2 09pm Quiz Instructions his assignment has 22 multiple choice questions and will automatically submit at the end of Question 9 Which element has the greatest electronegativity ability to attract electrons O OLI

Question 4 What would be the name of the structure shown below O sulfur dioxide O

Started May 11 at 2 09pm Quiz Instructions This assignment has 22 multiple choice questions and will automatically submit a Question 5 Which element is classified as a noble gas Na ON O Ni

tarted May 11 at 2 09pm Quiz Instructions This assignment has 22 multiple choice questions and will automatically submit at t Question 10 An element has the following electron configuration 1s 2s 2p 3s 3p64s 3d 04p65s 4d5 What is the element s name and number of electrons O yttrium 39 electrons O iron 26 electrons technetium 43 electrons

What is the product for the lollicraing action H C H C Select Br Br FeBry H C II Br O BrH C E III H C IV

view ed May 11 at 2 09pm aiz Instructions assignment has 22 multiple choice questions and will automatically submit at the Question 11 Which answer contains all metalloids semi metals OB Al Ga In Ge Ga As Se B Si Ge Sb OF Cl Br I

At approximately what temperature does the solubility of sodium chloride NaCl match the solubility of potassium chlorate KC1O3 1 63 C 2 53 C 3 83 C 4 33 C 100 unprece of water at 40 C the solution can be correctly

Nitrogen molecules have a unique bond their electrons pair up and create a triple bond The top picture represents the molecule showing six valence electrons shared between the two nitrogen atoms the bottom picture pairs those electrons up and shows them making a triple bond Which type of bonding is represented by the following Lewis Dot Diagrams NN N N polar covalent metallic nonpolar covalent

What is the major organic product formed when the compound below reacts with lithium aluminum hydride LiAlH4 followed by acidifying the reaction mixture O CH CH2 CH2 CO OH HO CH2 CH2 CH2 CH2 OH O CH CH2 CH2 CH O O CH CH CH CH OH H CH2 CH2 CH2 CO OH

What is the product for the following reaction HO HO CI H H Ch FeCl HO CI II H CI x HO III O H

Example Balance the following redox reaction in a basic solution using the oxidation number method CH3OH MnO4 CO3 MnO4

Which element exhibits metallic bonding Br Hg

13 10 pts Show the steps necessary to make 4 methylhexanoic acid using a malonic ester synthesis

The disaccharide shown here CH OH OH OH CH OH OH OH OH has a free anomeric carbon O could oxidize Cu ions has a B 1 6 glycosidic linkage contains both D and L sugars has a linkage like those in amylose has an 1 4 glycosidic linkage

If 1 28 moles of hydrogen react how many water molecules will be produced according to the following equation 3H Fe O3 2Fe 3H O Select the correct answer below O 7 71 x 1024 O 1 28 x 1024 O7 71 x 1023 O 1 28 x 1022

Provide a product for the following reaction Select CN IV CN NO SO H HNO H SO4 CN 11 CN NO V SO H CN E III CN SO H YI NO

Provide a product for the following reaction Select one b ll 111 NH I NH II NaOCI Nal NH NH III I NH IV

Given the formula representing a molecule HHHHH H C C C CICIN HHHHH A chemical name for this compound is pentanamide 1 pentanol Pentanone 1 pentan H TH

True False the major diastereomer produced in the reaction below is A cat Os04 TMANO 1 BuOH H O True False OH B H

91 Dimensional Analysis 1 Unit Conversions Question 9 Suppose the polar ice caps were retreating at an acceleration rate of 2 0 inches year 2 12 Which choice below is the best estimate of this acceleration in the units m sec ond Select one 54 x 10 7 second 54 x 104 m second 5 x 10 second