Organic Chemistry Questions

When 5 0 g of S is reacted 46 kJ of energy is produced Determine the enthalpy change per mole of sulfur reacting S s O2 g SO2 g 46 kJ mol 230 kJ mol 296 1 kJ mol 9 2 kJ mol

53 What is the most likely product of this reaction D C A B N N NH Holz N 2 H O LOH LOH NH NH

What is the total pressure in a 15 0 L flask which contains 0 127 mol of H2 g and 0 288 mol of N2 g at 25 0 C

Ise the given average bond dissociation energies D to estimate AH for the following reaction CH Cl g 2 H g CH4 g 2 HC1 g Bond D kJ mol C C 330 H C 432 H H 436 C H 410

Find AH for CaCO3 s CaO s CO2 g given 2 Ca s 02 g 2 CaO s 1269 8 kJ AH Ca s CO2 g 1 2 02 g CaCO3 s AH 826 5 kJ

Calculate AH for the reaction below in kJ mol using the values in the table H H H H H CI H F N H N O O H 0 0 F F H H 436 kJ mol 431 kJ mol 567 kJ mol 391 kJ mol 201 kJ mol 463 kJ mol 146 kJ mol 155 kJ mol H H H H H C C H H H Average Bond Energies kJ mol C H 413 kJ mol 348 kJ mol 293 kJ mol 358 kJ mol 485 kJ mol 328 kJ mol 259 kJ mol 242 kJ mol C C C C C 0 0 0 CHO C N N N NEN CON 614 kJ mol 839 kJ mol 799 kJ mol 495 kJ mol 1072 kJ mol 615 kJ mol 418 kJ mol 941 kJ mol 891 kJ mol

At a certain temperature 0 3211 mol of N and 1 601 mol of H are placed in a 3 50 L container N g 3 H g 2NH g At equilibrium 0 1801 mol of N is present Calculate the equilibrium constant Ke

A 10 03g sample of high fructose corn syrup concentrates is burned in a bomb calorimeter containing 200 0 g H O The temperature of the water increased by 15 53 C If the molar mass of this nutrient substance is 198 17 g mol what is the fuel value in nutritional Cal g 1Cal 1000 cal 1 kcal Specific heat of water 1 00 cal g C A 0 159 Cal g B 0 310 Cal g C 3 11 Cal g D 3 08 Cal g E 0 786 Cal g

Match the description to the element pair Magnesium and Sodium Carbon and Hydrogen Carbon and Oxygen Neon and Sodium Calcium and Sulfur Copper and Chlorine Argon and lodine Choose Choose Likely to React Unlikely to React Choose Choose Choose Choose Choose

Calculate the mass in grams of 6 95 mol of neon Ne mass of Ne Calculate the mass in grams of 0 867 mol of hydrogen peroxide H O mass of H O

PCI g PC13 g Cl g The concentrations of the products at equilibrium are PC13 0 220 M and Cl 0 280 M What is the concentration of the reactant PC15 at equilibrium PC s Ke 0 0420

56 Which is an intermediate in the reaction of 4 bromotoluene with sodium amide A Br NH B Br NH H H What CH3 CH D CH3 CH3

t STP The volume of the gas was 6 79 L at 680 mm Hg and 62 C Answer L of gas 7 46 Question 2 What is the volume of 12 2 g of nitrogen gas at STP 19 5 0 1 pts

Write the equilibrium constant expression for the reaction shown in terms of A B C and D A g B g 2 C g D g Note that Ke which is sometimes symbolized as K or Keq denotes that the equilibrium constant is expressed using molar concentrations For this question K means the same thing as K and Keq

Lesson 4 How to Write Chemical Formulas 18 Write the formula of the following acids Acid name ex carbonic acid hydrofluoric acid citric acid acetic acid hydroiodic acid Positive ion Base name ex sodium hydroxide strontium hydroxide lithium hydroxide potassium hydroxide H 19 Write the formula of the following bases Positive ion Na Negative ion CO32 Negative ion OH Acid formula H CO3 Base formula NaOH

Which of the following listed is the most likely product in the reaction shown NaOH aq HO Br HO NBS hv OH Br OH

What is the number of formula units in a 8 13 mol sample of FeCl number of formula units

How many atoms are in 2 13 mol of pure aluminum

If a scientist mixed hydrochloric acid HCI with calcium hydroxide Ca OH 2 what products would form O Water and Calcium Chloride O Water O Water and Calcium Hydride O Water and Calcium Hydroxide O Water and Calcium Bromide O Hydrochloric acid and Base

Which of the following is least likely to react with Fluorine F O Argon Ar O Gallium Ga O lodine I O Magnesium Mg O Carbon C

lithium to form a new stable product Ho many equivalents of lithium do you expe to react provide a bried explination 2 24 Snapchat 1 of 1 cdn fbsbx com 5G Do

Explain why the mass of the solute is conserved when a solution is diluted

Br2 light

Question 53 of 66 Provide the correct IUPAC name for the skeletal line bond structure shown here Stereochemistry is ignored 3 4 3 4 2 2 3 tri di iso tert hept methyl ethyl

Solutions of Cu Mg2 Zn2 and Pb2 ions and the corresponding metal solids Cu Mg Zn and Pb Your goal is to order Cu Mg Zn and Pb from strongest to weakest reducing agent

What is the major organic product obtained from the following sequence of reactions Br 1 Mg THF PCC 28 O 2 3 H3O

Chemistry VI Answer the following questions 20 pts b What is the IUPAC name of the following compounds b Cu l es el nombre IUPAC del siguiente compuesto H H H C OH OH OH OH CH3 CH3 CH3

11 12 13 14 15 One two tree All de same Black white brown All de same All de same 16 17 18 Read the passage from Sugar Changed the World Vith their victory the people of Saint Domingue announced that the conflict between freedom and roperty was over All men are equal meant that no men are property This idea terrified the English and not merely because their sugar island of Jamaica was just over a hundred miles across the water from Saint Domingue Indeed slaves in Jamaica were beginning to sing a new song while they worked 19 One two tree All de same That chant did more than threaten a slave revolt it was TIME REMAINING 01 16 49 How do the authors use historical evidence to support their claim Select two options They use a secondary source to show that the British secretary of war opposed involuntary servitude They use a primary source to show that a song was spreading the idea of equality across the Caribbean They use a secondary source to show that the idea of an enslaved people s revolt was groundbreaking They use a statistic to show that England had enough voters to end slavery and establish equality They use a primary source to show that some white people opposed the idea of freeing enslaved people

Use the table to calculate AH in kilojoules for the reaction below C 0 HIH H H H CI H F N H N O O H 0 0 F F 436 kJ mol 431 kJ mol H CO g 2H g CH3OH g 567 kJ mol 391 kJ mol 201 kJ mol 463 kJ mol 146 kJ mol 155 kJ mol H C H H Average Bond Energies kJ mol 413 kJ mol 348 kJ mol 293 kJ mol 358 kJ mol 485 kJ mol 328 kJ mol 259 kJ mol 242 kJ mol C H C C C N C O C F C CI C S CI CI C C CC C O 0 0 CO N N N N CON 614 kJ mol 839 kJ mol 799 kJ mol 495 kJ mol 1072 kJ mol 615 kJ mol 418 kJ mol 941 kJ mol 891 kJ mol

S Me Sio S ii i BuLi and Et O BF3 iii H H O O i LiMe Cu ii PhCH Br iii H H O

Which of the following is likely to react with Aluminum Al Chlorine CI O Magnesium Mg Calcium Ca Beryllium Be O Argon Ar

Write the rate law for the following reaction if the order of all reactants is one CH4 g 202 g 2H2O 1 CO2 g What happen to the rate of the reaction if the concentration of methane CH4 doubles OA Rate CH4 02 Doubled B Rate K CH4 02 Doubled OC Rate K CH 4 0 Doubled D Rate k CH4 02 Halved E Rate K CH4 02 Quadrupled

reaction Au s MnO Au Mn is balanced in acid 1 32 2 16 3 12 4 24 5 5 003 10 0 points Some compounds of hydrogen and oxygen are exceptions to the common observation that H has oxidation number 1 and O has oxidation number 2 Assuming that the metal has the oxidation number of its most common ion find the oxidation number of H in the compound NaH 7 10 11 1 2 2 3 3 5 6 7 1181123 M A an 12345

What is the analytical concentration of NH3 in 0 12 M NH3 solution L tfen birini se in a 0 12 M b 0 24 M c 0 06 M d 1 45 10 3 M O e 7 5 10 6 M

A reaction which releases energy is called Endothermic Cold O Exothermic Isothermic O None of these Hot

A person dissolves 178 39g of sodium chloride NaCl into a solution with a total volume of 7 32L Calculate the concentration molarity of the solution Round to two decimal places

SUV TRANSCE 50 D 4000 Which one of the following compounds is consistent with the following IR spectrum 3000 OH 2000 HAVENUMBER LOH 1500 OH E OH IV 1000 OH V H 500

A person has 4 46L of a 7 45M NaCl solution If they would like to dilute it to 1 31M how much water would they need to add Round to 2 decimal places

A solution is made by dissolving 5g of salt in 200g of water How would a person dilute the solution Take water out of it Add more solute to it Distill it Boil it O Measure its volume O Add more salt to it

1 Name the following compound F 2 Rank the following from least to most water soluble Explain i OH 1 IONE lo ONa

4 Draw and name all products of the following addition reaction Classify each as Major or Minor Product T 4 HCI

O N S Ph OH SnC14 CI 12 NaHCO3 PhCH NH

A person mixes 4 80L of a 2M barium nitrate solution with a 3 25M sodium carbonate solution The reaction forms solid barium carbonate and aqueous sodium nitrate What volume in liters of the sodium carbonate solution would the person need to measure out to fully react the barium nitrate with no excess reactant left over round to two decimal places

Given the equation Q mcAT heat in Joules mass in grams e m C 4 18 AT www specific heat capacity change in temperature C How many Joules of heat energy are absorbed when 200 grams of water are heated from 20 C to

Given the equation Q mcAT Q heat in Joules m mass in grams C 4 18 specific heat capacity AT change in temperature C Calculate the number of Joules of heat energy released when 25 grams of water are cooled from 30 C to I

A solution is A single substance A mixture of two substances A homogenous mixture of two substances O None of these 0 1

2 Which reaction would be most likely to react by an SN2 mechanism CH3 A B C D E H C CI CH CI CH Cl CH CI CI OH aq CH OH DMF CH OH NO ethanol CH OH

What is the molarity of a solution which contains 106 56g KCl potassium chloride and 179 96mL of solution Round to two decimal places 1000mL 1L

Question 8 Heat of fusion is defined as the energy required at constant temperature to change a gas to a liquid solid to a gas solid to a liquid gas to a solid

Question 2 What is the molarity of a solution which has a volume of 4 97L and contains 6 85mol of NaC Round to two decimal places