Isomerism Questions and Answers

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

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

H C H3C CH CH oCO H CH CH 7 H LOH c c OH CH2 CO H H Cis H3C H H CH CH CH CH CH CO H CH CH 7 C C CH3 CH3 H CH CO H Trans

1 LiAlH4 2 H O 3 NaH 4 CH CH Br

o nonsuperimposable molecules are shown in the windows below ball stick labels Submit Answer ball stick 1 How many stereocenters are there in the molecule on the left 2 What is the total number of stereoisomers in the group that includes the molecule on the left 3 How many stereocenters are there in the molecule on the right 4 What is the total number of stereoisomers in the group that includes the molecule on the right 5 Are the two molecules enantiomers diastereomers constitutional isomers or not isomers of any kind labels Try Another Version 8 item attempts remaining

24 Lead II chloride is combined with zinc nitrite resulting in lead II nitrite and zinc chloride

Draw the full Lewis Structure for the compound cis 1 4 dichlorohept 2 ene

Write the curved arrow mechanism for these reactions that occur with carbocation rearrangement a Alkyl shift b Hydride shift H O H SO4 HCI CI x OH

11 How many moles in 235 g of zinc hydroxide

The Atom Electrons negative charge surround the nucleus Nucleus Protons positive charge Neutrons neutral charge Atomic number Chemical symbol Element name Atomic mass What is the aforic symbol Ar What is the atomic number 18 Howmany Protons 18 Howmany Electrons 13 What is the atomic Mass Howmany Neutrons Carbon 12 0 Ar 39 95 Enchanted Learning com 18

Which two molecules can be combined to form the product shown below Choose 2 of the 8 molecules o HO OL MgBr 1 BrMgCH CH3 MaBr ON OV OV A OVIL MgBr a

12 Provide all reagents needed to complete each of the following syntheses Most transformation require more than one step CHOOSE 6 of the following 7 Place a star next to the synthesis DO NOT want graded OH OH

What does the law of conservation of mass state O For every action there is an equal and opposite reaction O Energy cannot be created or destroyed Mass can be created or destroyed O Mass is lost O Mass is gained O Mass cannot be created or destroyed

In the following molecule identify ALL functional groups present 00 alcohol ether amine O aldehyde ketone carboxylic acid ester amide aromatic ring H C CH3 CH3 OH 2E 3 7 dimethylocta 2 6 dien 1 ol

Draw trans 2 ethyl 1 iodocyclohexane in a chair conformation

Draw the structure of a phospholipid containing hexanoic acid Z 3 hexenoic acid and ethanolamine Consider E Z stereochemistry of alkenes Do not show stereochemistry in other cases You do not have to explicitly draw H atoms Do not include lone pairs in your answer They will not be considered in the grading Draw the unsaturated fatty acid on carbon 1 of glycerol and the saturated fatty acid on carbon 2 Draw the phosphate group and the alcohol group as appropriate in their ionized forms as they would appear at pH 7 0 In cases where there is more than one answer just draw one e e C e C e

What reagent s is are needed to induce the following isomerization CH OH 0 H CHO OH HO H HOH CH OH NaOH aq Br2 H O HCI aq PCC Question 2 HO H OH CH OH 2

What would the products of a reaction between aqueous copper (II) chloride and aluminum metal be? Cu +AICI CuCl2+Al AICI₂ + Cu CuAl + Cl₂ Cu + AICI 3

True / False; When naming compounds you can only use the cis/trans naming system for alkyne molecules. True False

In water, HF dissociates partially in water according to the reaction HF + H₂O → H3O* + F. I would classify this compound as a: Weak acid Weak base Strong acid Strong base

The best method to prepare acetophenone is: O3 oxidation of styrene KMnO4 oxidation of styrene KMnO4 oxidation of phenylethanol NBS oxidation of phenylethanol PCC oxidation of 1-phenyl ethanol

Draw a Lewis structure for PO,³ in which the central P atom obeys the octet rule, and answer the following questions based on your drawing. The number of unshared pairs (lone pairs) on the central P atom is: The central P atom forms _ single bonds. The central P atom forms _double bonds.

Aluminum oxide, Al 203, is used as a filler for paints and varnishes as well as in the manufacture of electrical insulators. Calculate the number of moles in 47.51 g of Al2O3. 2.146 mol 0.4207 mol 1.105 mol 0.4660 mol 2.377 mol Save Answer

A chemise prepares a solution of copper(II) sulfate (CuSO4) by measuring out 91.1 μmol of copper (II) sulfate into a 450. mL. volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's copper(II) sulfate solution. Round your answer to 3 significant digits.

A chemist prepares a solution of barium chlorate (Ba(ClO3)₂) by measuring out 28. µmol of barium chlorate into a 150. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's barium chlorate solution. Round your answer to 2 significant digits.

Complete the Lewis structure for this species: CO2 Enter the total number of valence electrons in the box. Valence electrons:

What is the % mass/volume concentration of a solution consisting of 36 grams of K₂SO4 with a total solution volume of 0.6 L? 6% 1.6% 60% 0.06% 21.6%

A doctor orders a Liter of medication to be administered over the course of 8 hours. How should the IV drip be set in drops per minute? The conversion factor you will need for this question is: 1 mL equals 10 Drops Which of the following could be next step in setting up dimensional analysis? (1L/8 hours) (1,000 mL/1L) (?/?) (1 hour/60 liters) (60 minutes/1 hour) (1 mL/10 drops) (10 drops/1 mL)

In a cycle of copper experiment, a student first reacts a piece of copper metal with nitric acid to produce copper(II) nitrate (Cu(NO3)₂) solution. The student then performs various reactions which transform the copper ions into a series of different copper compounds and complexes. Finally, the last reaction reduces the copper ions back to elemental copper metal. Copper atoms are conserved throughout the process. If the initial step of the experiment produces 5.14 mL of 1.66 M Cu(NO3)2, what is the theoretical yield of solid copper (Cu) that can be recovered at the end of the experiment?

What is the maximum mass of pure copper that could be extracted from 175. g of chalcopyrite, a copper ore with the chemical formula CuFeS₂? Be sure your answer has a unit symbol, if necessary, and is rounded to 3 significant digits.

Liquid hexane (CH3(CH₂) CH3) will react with gaseous oxygen (O₂) to produce gaseous carbon dioxide (CO₂) and gaseous water (H₂O). Suppose 6.0 g of hexane is mixed with 31.1 g of oxygen. Calculate the maximum mass of carbon dioxide that could be produced by the chemical reaction. Round your answer to 2 significant digits.

When a 8.00 g sample of KCI is dissolved in water in a calorimeter that has a total heat capacity of 4.73 kJ. K-¹, the temperature decreases by 0.390 K. Calculate the molar heat of solution of KCI.

Nitrogen (N₂) gas and hydrogen (H₂) gas react to form ammonia (NH3) gas. Suppose you have 7.0 mol of N₂ and 2.0 mol of H₂ in a reactor. Suppose as much as possible of the N₂ reacts. How much will be left? Round your answer to the nearest 0.1 mol.

Which of the following statements is true about a reversible reaction that has reached chemical equilibrium? The forward reaction occurs at a faster rate than the reverse reaction. The rate of the forward reaction is increasing while the reverse reaction has completely stopped. The forward and reverse reactions occur at the same rate. The reverse reaction occurs at a slower rate than the forward reaction.

Iron(II) sulfate forms several hydrates with the general formula FeSO4 xH₂O, where x is an integer. If the hydrate is heated, the water can be driven off, leaving pure FeSO4 behind. Suppose a sample of a certain hydrate is heated until all the water is removed, and it's found that the mass of the sample decreases by 11.%. Which hydrate is it? That is, what is x?

The Ostwald process is used commercially to produce nitric acid, which is, in turn, used in many modern chemical processes. In the first step of the Ostwald process, ammonia is reacted with oxygen gas to produce nitric oxide and water. What is the maximum mass of H₂O that can be produced by combining 54.4 g of each reactant? 4 NH, (g) + 50₂(g) 4 NO(g) + 6H₂O(g) mass: - g H₂O

How many 5d orbitals are there in an atom? What is the maximum number of electrons possible in a set of 5d orbitals?

What is a gerund? A) Acts as a noun in a sentence B) Acts as a continuous tense in a sentence C) is formed by "verb-ing" D) Can be the subject or the object in the sentence E) A and B F) B and C G) A, C, and D

(a) Construct a table of reagents, with columns for amount used, molecular weight, moles, and equivalents (you may need another column for density In some cases). (b) Calculate the percent yield. Please show ALL your work, and be sure to pay attention to SIGNIFICANT figures. Fallure to do elther will result in a loss of points. (2) 4.4895g of the alkyl halide was reacted with 7.13g of the cyanide salt to give 1.3558 of product.

Gaseous ethane (CH3CH3) reacts with gaseous oxygen gas (O₂) to produce gaseous carbon dioxide (CO₂) and gaseous water (H₂O). If 0.408 g of water is produced from the reaction of 0.60 g of ethane and 1.3 g of oxygen gas, calculate the percent yield of water. Round your answer to 2 significant figures.

For the following reaction, 26.4 grams of hydrochloric acid are allowed to react with 66.4 grams of barium hydroxide. hydrochloric acid (aq) + barium hydroxide (aq) → barium chloride (aq) + water (l) What is the maximum amount of barium chloride that can be formed? What is the FORMULA for the limiting reagent? What amount of the excess reagent remains after the reaction is complete?

Potassium superoxide, KO₂, is often used in oxygen masks (such as those used by firefighters) because KO₂ reacts with CO₂ to release molecular oxygen. Experiments indicate that 2 mol of KO₂ (s) react with each mole of CO₂ (g). The products of the reaction are K₂CO3 (s) and O₂(g). Write a balanced equation for the reaction between KO₂ (s) and CO₂(g). Express your answer as a chemical equation. Identify all of the phases in your answer. Indicate the oxidation number for each atom involved in the reaction in part A. Before the reaction: Enter your answers numerically separated by commas.

Ketones typically have a carbonyl stretching frequency around 1715 cm-¹. a. Provide an explanation why the C-O group of 4-methoxychalcone has a stretching frequency of 1650 cm-¹

Suppose all the hydrogen atoms in this molecule are replaced by chlorine atoms: Draw a skeletal ("line") structure of the new molecule. Be sure you follow all the usual rules for drawing skeletal structures.

Draw the skeletal (line-bond) structure of 3-bromohexane.

With respect to metabolites made from cholesterol estrogens are derived from androgens it includes vitamin D, but not vitamin A they do not include the prostaglandins all of the above are true none of the above are true

Step one of glycolysis is irreversible in muscle cells, meaning that glucose-6-phosphate is not easily converted back to glucose. Why would this beneficial to muscle cells? (optional) Glucose-6-phosphate is an allosteric inhibitor of hexokinase, the enzyme that catalyzes reaction 1 of glycolysis. Review the section in your text about enzyme inhibitors. a. How does an allosteric inhibitor work? b. Why would this enzyme be a good target for regulation by inhibition?

Hydrazine reacted with oxygen according to the (unbalanced) equation N₂H4 (1) + O₂(g) → NO2 (g) + H₂O (g) pe un lf 25.00 kg of hydrazine are reacted with 150.0 kg of oxygen, which is the limiting reagent? 1905 19 How many kg of NO2 are produced from the reaction of the limiting reagent? If 36.00 kg of NO2 are obtained from the reaction of the limiting reagent, what is the % yield? Suser (20

How many Hg atoms are present in the sample?

What are the moles of each element in 100.0 g of vinegar? (Enter your answers to three decimal places.)