Draw the skeletal structure of a dihalide that could be used to prepare the following alkyne. There may be more than one possible dihalide. The structure should be drawn so that the same halide is used throughout the structure. Lone pairs on halogens do not need to be drawn. Click the "draw structure" button to launch the drawing utility.

Q: Provide the correct systematic name for the compound shown here. N,N- 2- di 4- 3- N- 5- tetra tri…

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Q: Given each pair of compounds below, CIRCLE the one you would expect to elute from a silica…

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Q: ' Determine the activation energy (kJ) for a reaction using the following information. Report your…

A: To calculate activation energy, we need to use Arrhenius equation.

Q: Determine the point group of each molecule. Show the different symmetry elements. 12. PF₂Cl4

A: Symmetry elements:  Proper axis of rotation:  Axis Rotation about which gives an indistinguishable…

Q: The literature melting point of compound A is known to be at 54-55 °C.  If a very small amount of…

A: Given:   melting point of compound A = 54-55 °C melting point of compound B = 81-82 °C We have to…

Q: draw the structures for the following names

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Q: 6. What is the efficiency of a reversible heat engine operating between 600. and 150. K? (a) 0.75…

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Q: Which structure represents the lowest energy conformer of trans-1-ethyl-2-methylcyclohexane? A. B.…

A: Conformational isomers: The conformational isomers are formed by the rotation of a carbon-carbon…

Q: Calculate the initial concentration of a reactant that took 5 min to reach a final concentrationof…

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Q: Determine the point group of each molecule. Show the different symmetry elements. 10. POCI3

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Q: are not wolls al szabongizes SITTA 2. In determining the density (d) of a sample, the measured…

A: Significant figures: The way or a form of expressing a large number in a simple form to make easy…

Q: For a particular reaction at 148.1 °C, delta G=−1428.51 kJ, and       delta S =393.69 J/K  .…

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Q: Which of the following compounds would you expect to dissolve in water after treatment with NaHCO3…

A: Given expect to dissolve in water after treatment with NaHCO3

Q: The structure shown is an example of a type of macromolecule (carbohydrate, lipid, protein, or…

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Q: Answer the following about the titration plot shown below, involving a monoprotic acid and base. 20…

A: Given , Titration curve of monoprotic acid and base.

Q: cat. H+ excess CH3OH -H₂O O

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Q: Determine the point group of each molecule. Show the different symmetry elements. 6. PF5

A: Symmetry elements:  Axis of rotation: round around which gives an indistinguishable molecule.  Axis…

Q: 24. Consider the following unbalanced redox reaction: ClO3 + Fe²+ + HCl + Fe³+ + H₂O The…

A: Given : redox reaction Tip : balance under acidic condition.

Q: answe scantron sheet 1. Which of the following is an example of a physical change? A) The reaction…

A: Given changes are: A) The reaction of hydrogen and oxygen to form water B) The vaporization…

Q: Calculate the standard enthalpy of formation for C2H5OH(l). Use the standard enthalpy of formation…

A: The given organic compound is C2H5OH(l). The standard enthalpy of formation for C2H5OH(l) is

Q: The basis of chromatography for separating components of a mixture is:   a. the thermal…

A: Chromatography is the laboratory technique used to seperate the coloured components of the mixture.…

Q: On a blank sheet of paper. first copy the molecule below, and then please draw the resonanco…

A: Resonance structure: If the Lewis structure of a molecule or ion cannot explain by a single…

Q: How many grams of KNO3 (101.1 g/mol) must be dissolved in 434.1 mL of water in order to create a…

A: In this question  a solution of KNO3 which has a concentration of ions equal to 1.61 m. We have to…

Q: A major component of gasoline is octane (C,H₁). When octane is burned in air, it chen and water…

A: One mole of octane react with oxygen and form eight mole carbon dioxide and nine mole water…

Q: 6. A sample of Magnesium Chloride (MgCl₂) has a mass of 12.94 g. How many atoms of Clare in the…

A: Given = Mass of MgCl2 = 12.94 g

Q: Consider a reaction governed by the following rate law: Rate = 0.38 M-1 -¹ [A]2 How long does it…

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Q: Which set(s) of compounds below could be easily separated by column chromatography? Circle: a a) b)…

A: In column chromatography chemical compounds are separated based on their polarity difference

Q: What is the correct systematic name for the compound shown here? 'N

A: IUPAC nomenclature of organic molecules.

Q: Which statement is true? Bromination is faster than chlorination because the rate-determining step…

A: Asking is, In Given statement choose the true one?

Q: Tamifu(Oseltamivir), C₁ H₂N₂O₁, an antiviral drug used to treat influenza (Figure 1). The…

A: Given, Tamiflu is used in treatment of influenza .

Q: What volume in mL of an 11.6 M HCIO, (100.5 g/mol) solution is needed to make 500.0 mL of a 7.59 M…

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Q: Rank the substituents on the asterisked (*) carbon from lowest to highest priority. Select an answer…

A: According to the CIP rule for the priority of groups attached to the chiral carbon follows the rule…

Q: Determine the point group of each molecule. Show the different symmetry elements. 4. S03

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Q: What test will you use to differentiate Alkenes from alkynes? Explain.

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Q: 2. Radioactive cobalt-60 is used extensively in nuclear medicine as a y-ray source. It is made by a…

A: A question based on nuclear chemistry that is to be accomplished.

Q: A 70.0 mL solution of 0.550 M Pb(NO3)2 was mixed with 55.0 mL of 0.600 M Na3PO4, resulting in the…

A: Given reaction: We have to find the molecular weights of Pb(NO3)2, Na3PO4, and Pb3(PO4)3. Also, we…

Q: If you are using 5.307 grams of vanillin in your reaction and want to achieve a 1:1 ratio in…

A: at equivalence point, mole of vanillin = mole of NaOH. mole = massmolar mass mass = mole × molar…

Q: A molecule with the molecular formula of C3H6O2 produces the IR spectrum shown below. Draw a…

A: IR spectroscopy is used to determine the functional group of a chemical compound.

Q: Bromine-82 has a half life of 35.7 hours. How many milligrams of Br-82 will remain if 2.30g of Br-82…

A: This question is related to radioactivity. Bromine has two isotopes Br-79 and Br-82. Out of these…

Q: 5. Sodium reacts with water to produce aqueous sodium hydroxide and hydrogen. E MI sodium: E MI…

A: Chemical reaction : It is a process in which 0ne or more substances  called reactant combine…

Q: Does removing water from the hydrate constitute a physical or chemical change? Explain

A: Given  removing water from the hydrate constitute

Q: Calculate the pH and the equilibrium concentrations of HSeO3 and SeO32- in a 0.0769 M selenious acid…

A: Given data  0.0769 M  H2Se03 (aq).For H2Se03, Ka1 = 2.4x10-3 and Ka2 = 4.8x10-9

Q: 22. ( Carbonic acid, H₂CO3, is a diprotic acid with Ka₁ = 4.4 * 107 and Ka2 = 4.7 * 10-¹¹. The K₂1…

A: The pKa values of carbonic acid, H2CO3 are: H2CO3(aq) ↔ H+(aq) + HCO3-(aq) ; pKa1 = -log(Ka1) = -…

Q: In carrying out the first standardization in this experiment, a student used 0.5067 g of potassium…

A: The mass of KHP used = 0.5067 g The volume of NaOH solution needed to reach the equivalence point =…

Q: The KM for a substrate is equal to a. k-1/k2. b. Vmax/2. c. [S] at Vmax/2.

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Q: An instructor gave you direction to construct a model of CH3CH2Br molecule by following the…

A: CH3CH2Br is a organic compound contains one halogen atom. The IUPAC name of the compound is 1-bromo…

Q: Using the phase diagram to the right: a. Label each phase in the diagram to the right in the box…

A: a.) In a phase diagram, phases are determined based on conditions of pressure and temperature.  b.)…

Q: In the synthesis of phosphorus pentoxide, elemental phosphorus, P4, is burned in an oxygen…

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Q: A 1.8M HCl solution was standardized against 1.4g sodium carbonate Na2CO3  (MW = 106g/mol) . The…

A: Balanced reaction equation can be written based on the analyte and titrant.

Q: A wood sample from an Egyptian tomb gave a C-14 activity per unit mass of 7.3 per min per g.…

A: we need to calculate the age of the wood sample in years.

Stereochemistry and Isomerism

Stereochemistry deals with the three-dimensional structure and properties of molecules. It explains the arrangement of atoms and their manipulation within a molecule in a 3D structure. Stereochemistry can be dealt with all types of molecules. Based on the stereochemistry of a molecule, the physical and chemical properties of the molecules vary.