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Computer Engineering Questions and Answers October 16, 2019

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Using the Aufbau chart provided, draw the energy level diagram for a potassium atom. Label each of the subshells and place the correct number of electrons in each orbital. 8 . Show the electron configuration for carbon using an orbital box diagram. 9 . How many sigma and pi bonds are found in a molecule of ethyne ( C 2 H 2 ) ? 1 0 . a ) What type
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Use standard reduction potentials to calculate the equilibrium constant for the reaction: Hint: Carry at least 5 significant figures during intermediate calculations to avoid round off error when taking the antilogarithm. Equilibrium constant at 2 9 8 K : G for this reaction would be than zero.
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Label the following alkenes as E or Z or neither
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Q1. (15 points) Diederich's group studied the following equilibrium reaction (Org. Lett. 2014, 4722). 1 2 3 (a) For substrate 1 where ( mathrm{R}=mathrm{Me} ), the equilibrium constant ( ( mathrm{Keq} ) ) was determined to be 11 ( mathrm{M}^{-1} ). Please give the equation that would allow you to convert this Keq to ( Delta mathrm{G} ). Also,
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Chem 1 4 0 5 : Electronic configuration Bohr's planetary model of the atom is drawn below to show 6 energy levels of the electron. Draw the following transitions on the model: n = 6 n = 2 n = 5 n = 2 n = 4 n = 2 n = 2 n = 3 n = 2 n = 6 Which transition corresponds with a . The least amount of energy absorbed ? b . The largest amount of energy
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What characteristic IR vibrations and NMR signals do you expect from di-tert-amyl-di-methoxybenzene?

Write a complete reaction mechanism using ChemDraw application between 3 - o - caffeoylquinic acid, a polyphenol present in coffee and glyoxylic acid, an advanced glycation endproduct ( AGEs ) of Maillard reaction

1.71025O3 molecules
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For each of the following values, identify the number of significant digits of the value
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please explain Consider each of the following systems at equilibrium. The temperature is kept constant, and in each case the reactants are in a cylinder fitted with a movable piston. For which system(s) will a decrease in pressure favor the formation of products? Check all that apply. \begin{tabular}{|l|} A(s)2B(s) \\ 2A(g)2B(g) \\ 2A(g)B(g) \\
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Determine the solute mole fraction of the 1 . 2 5 M C 1 2 H 2 2 O 1 1 ( aq ) solution with a density of 1 . 1 2 g / mL . ( molar mass of C 1 2 H 2 2 0 1 1 = 3 4 2 g / mol )

Are my answers correct? Given the phase diaaram for neon: a . What is the approximate value of the normal melting point? b . Over what pressure range will solid neon sublime? c . At T = 2 5 K , can gaseous neon be liquefied by compressing it ?
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The equilibrium constant K c for the reaction H 2 ( g ) + C O 2 ( g ) H 2 O ( g ) + C O ( g ) is 4 . 2 0 at 1 6 5 0 . 0 0 C . Initially 0 . 8 6 0 m o l H 2 and 0 . 8 6 0 m o l C O 2 are injected into a 1 . 4 0 L flask. Calculate the concentration of each species at equilibrium. Round each of your answers to 3 significant digits. Part 1 of 4 [ H 2
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Name the enzyme that hydrolyzes sucrose sucrose amylase sucrase sucrose lipase sucrose oxidase Part B Name the enzyme that transfers an amino group from aspartate. aspartate isomerase aspartate kinase aspartate transferase aspartate mytase Name the enzyme that removes a carboxylate group from pyruvate. carboxyl transaminase alanine transaminase
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Round off each of the following numbers to two significant figures (Scientific notation can be represented as 2.34E+1 or 2.34101 ): (a) 517 (b) 86.3 (c) 6.382103 (d) 5.0008 (c) 22.497 (f) 0.885
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In the sulfite S O 3 2 - ion, what is the formal charge on the sulfur atom? ( a ) - 4 ( d ) + 4 ( b ) - 2 ( e ) + 6 ( c ) 0
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Give the structure of the Grignard reagent and the substrate ( aldehyde or ketone ) which will react to form the following alcohols: a ) 2 - phenylethanol f ) 2 - methyl - 3 - pentanol b ) 1 - phenylethanol g ) 1 - ( p - toulyl ) ethanol c ) 2 - phenyl - 2 - propanol h ) 1 - propanol d ) cyclohexylmethanol i ) 2 - ( p - methoxyphenyl ) ethanol e )
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Given that the molar volume of liquid carbon dioxide at - 3 7 C is 3 9 . 9 m L m o l and the molar volume of solid carbon dioxide at - 7 9 C is 2 8 . 2 m L m o l , calculate the density of carbon dioxide at each set of conditions. If carbon dioxide were to act as an ideal gas, what would be its density at 5 0 C ? When one compares each value for
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For the compound shown, how many different unique signals would you see in the HNMR? (a) 4 (b) 5 (c) 7 (d) 8
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Which of the following statements is/are true regarding Alkene A and the products of an ozonolysis (O_(3)) reaction? (i) One of the alkene carbon atoms of alkene A is disubstituted and the other is monosubstituted (ii) One of the alkene carbon atoms of alkene A is monosubstituted and the other is unsubstituted (iii) Ozonolysis of alkene A followed

Which of the following is true regarding the structure of the intermediate and the final product in the reaction between bromine and cis-stilbene (cis-1,2-diphenylethene) (1) shown below? a. the reaction proceeds via the intermediate structure (2), to give the product structure (4). b. the reaction proceeds via the intermediate structure (3), to

The 2H isotope of hydrogen is named deuterium and is often written as D. A sample of water has been prepared so that it contains contains 70% of D2O and 30%H2O. Use the following data to determine the average molecular weight of water in the sample. You may assume that any other isolopes make a negligible contribution to the average molecular
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Explain in terms of attractive forces why some salts containing Zn 2 + are soluble in water, but Zn metal is insoluble. Draw molecular pictures that illustrate the interactions between Zn 2 + and water ( use Lewis structures ) .

A 50.0g sample of unknown metal at 225.0C is placed in a calorimeter containing 110g of water at 15.0C. The final temperature of the combination is 19.3C. The heat capacity of the calorimeter is 8.2J/C and the specific heat capacity of the water is 4.18J/gC. What is the energy change for the water? qH2O=J Enter either a+ or - sign AND the
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9 1 0 The equilibrium constant K c for the reaction H 2 ( g ) + B r 2 ( g ) 2 H B r ( g ) is 2 . 1 8 0 1 0 6 at 7 3 0 . 0 C . Starting with 1 . 2 0 moles of H B r in a 1 7 . 8 L reaction vessel, calculate the concentrations of H 2 , B r 2 , and H B r at equilibrium. Part: 0 2 Part 1 of 2 Round each of your answers to 3 significant digits. [ H 2 ]
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1. The figure to the right shows a paper chromatogram for a mixture containing three dyes: A, B, and C. Distilled water is used as eluent. a. Label the figure with the following items: stationary phase, mobile phase, and solvent front. b. Calculate the ( R_{mathrm{f}} ) value for Dye A c. Calculate the ( R_{mathrm{f}} ) value for Dye C d. Which
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please answer and show stereochemistry 1.Draw the mechanism for the following reaction and sl stereochemistry: (5 points) a. b
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What is the major product of the following reaction? HCl CH3CCHexcss Icl CH3CH=CHCl
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What happens when we add KMnO4 to alkenes under basic conditions and heat?

Use standard reduction potentials to calculate the equilibrium constant for the reaction: C o 2 + ( a q ) + 2 A g ( s ) C o ( s ) + 2 A g + ( a q ) From the table of standard reduction potentials: E C o 2 + C o o = - 0 . 2 8 0 V , E A g + A g o = 0 . 7 9 9 V Hint: Carry at least 5 significant figures during intermediate calculations to avoid round
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H 2 5 . 1 0 - Level 2 HomeworkUnansweredDue Today, 1 1 : 5 9 PM Sort the following carboxylic acid derivatives in decreasing order ( most to least ) of reactivity towards nucleophilic substitution. Drag and drop options into correct order and submit. For keyboard navigation...SHOW MORE Press space or enter to grab 2 Press space or enter to grab 1

Write the mechanism of the following reaction. ? 2 . N H 4 C l , H 2 O 1 . C H 3 M g B r
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please answer fast Which of the following dienes contain conjugated double bonds? A.II, IV, B. 1, H, IHI C. I, II, IV D. 11,III,IV
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please answer fast [1 II IIII IV
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I need the solution in details

Sketch (5 pts total) A graded response A hypersensitive response A hyposensitive response Label which response exhibits positive allostery Label which response exhibits negative allostery
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Concentrated hydrochloric acid solution is 3 7 . 0 % H C l and has a density of 1 . 1 9 g m L . A dilute solution of HCl is prepared by diluting 4 . 5 0 m L of this concentrated H C l solution to 1 0 0 . 0 0 m L with water. Then 1 0 . 0 m L of this dilute H C l solution reacts with an A g N O 3 solution according to the following reaction: H C l (
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A sample of 1 6 0 0 ppm of Compound k is dissolved in water. I want to dilute this in dilutions as follows: Tube 1 is 5 mL tube with a 1 / 2 0 ratio, Tube 2 is 1 0 mL total with a 1 / 1 0 ratio, and Tube 3 is a 4 ml tube with a 1 / 8 ratio. Calculate the concentration of compound k in each tube and the amount of mL of material diluted and water

Which hybrid orbitals are used by nitrogen atoms in the following species? a ) N * H _ { 3 } sp s * p ^ 2 ; s * p ^ 3 ( b ) H _ { 2 } * N - N * H _ { 2 } sp s * p ^ 2 ; s * p ^ 3 ( c ) NO 3 ^ - ; s * p ^ 2 sp s * p ^ 3

Question 7 of 2 2 ( 1 point ) I Question Attempt: 1 of 1 2 3 4 5 6 8 1 3 - = 1 4 Consider the following reaction: N 2 ( g ) + O 2 ( g ) 2 N O ( g ) If the equilibrium partial pressures of N 2 , O 2 , and N O are 0 . 1 4 , 0 . 3 4 , and 0 . 0 7 0 atm, respectively, at 2 2 0 0 C , what is K P ? Round your answer to 2 significant digits.
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What is the total combined mass of carbon dioxide and water that is produced An automobile gasoline tank holds 35.0kg of gasoline. When all of the gasoline burns, 160.0kg of oxygen is consumed, and carbon dioxide and water are produced
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In what part of our body is cholesterol NOT found: A. cell membranes B. brain C. blood plasma D. lungs E. nerve tissue
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Find the different settlements For each element and spin (S) and multipicity (M) and Spin quantum number (ms) and Coulomb pushing energy ( c) and exchange energy (e) and order the energy \begin{tabular}{|c|c|} \hline Atom & Konfigrasyon \\ \hlineSo & Ar)4s23d1 \\ \hline Ti & Ar)4s23d2 \\ \hline V & (Ar) 4s23d3 \\ \hline Cr & Ar423d5 \\ \hline Mn &
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Show how would you synthesize the following alcohols from appropriate alkenes. a . b . c . d . b
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please hand draw Draw the structure of N-butylmethanamide
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Fill in the missing information: Complete the table below by writing the symbols for the cation and anion that make up each ionic compound
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This energy dagram shows the allownd energy levels of an electron in a certain atom. (Note: the st prefix 'zepto' meana 1021. You can find the meaning of arry 81 preflix in the NeKS Data tab.) Use this diagram to complete the table below
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Which of the following is true regarding the stereochemistry about the alkene bonds of structures A, B, C and D? a. A is an E isomer; B is a trans-isomer, C is a transisomer, D is an E isomer b. A is a Z isomer; B is a trans-isomer, C is a cis-isomer, D is aZ isomer C. A is a Z isomer; B is a cis-isomer, C is a transisomer, D is an E isomer d. A
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1. Calculate the energy in each case given below and rank them in terms of decreasing energy: (a) =473nm; (b) =645nm; (c) =453nm (PO1, Marks: 04) 2. The electron in a ground-state H atom absorbs a photon of wavelength 97.20nm. To what energy level does it move? (PO1, Marks: 04)
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Can you show me what reaction occurs during extraction with alkaline water solution, Write the reaction equation with structural formulas, use arrows.
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Cyclopentadiene can be deprotonated with relatively weak bases and shows much higher acidity than the vast majority of other simple hydrocarbons. a) Draw the resonance structures of the resulting anion, and develop a molecular orbital diagram. b) Utilize either of these (resonance structures of MO diagram) to identify a factor that could explain
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Complete the reaction schemes below with the most likely reaction product for each reaction. a) c) d)
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How do you name these compounds? Please example in detail.
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Determine the solute mole fraction of the 1 . 2 5 M C 1 2 H 2 2 O 1 1 ( aq ) solution with a density of 1 . 1 2 g / mL . ( molar mass of C 1 2 H 2 2 0 1 1 = 3 4 2 g / mol )

In the sulfite S O 3 2 - ion, what is the formal charge on the sulfur atom? ( a ) - 4 ( d ) + 4 ( b ) - 2 ( e ) + 6 ( c ) 0
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The dissociation of molecular iodine into iodine atoms is represented as I 2 ( g ) 2 I ( g ) At 1 0 0 0 . 0 K , the equilibrium constant K c for the reaction is 3 . 8 0 1 0 - 5 . Suppose you start with 0 . 0 4 5 5 mol of I 2 in a 2 . 3 5 L flask at 1 0 0 0 . 0 K . What are the concentrations of the gases at equilibrium? Part 1 of 2 What is the
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Determine whether the following pairs of drawings represent the same molecule or different molecules, graphically justifying your answer.
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Which of the following statements is/are true regarding the expected outcomes of electropnilic addition to the unsymmetrically substituted alkene (1) shown below (i) The major product of a Markovnikov addition of HX to (1) will be the one where H adds to the less substituted alkene carbon atom and X adds to the more substituted alkene carbon atom

Show the Mechanism and pronduct
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The figure below shows both the emission and fluorescence spectrum of anthracene in a suitable solvent. (i) Indicate the approximate wavelengths the 00,01 and 02 transitions in both spectra. [2 marks] (ii) Calculate the energy absorbed and emitted for the 0-2 transitions in both spectra. h=6.6261.014Js [6 marks] (iii) Both the absorption and
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The molar enthalpy of combustion for methane ( CH 4 ) is - 2 2 4 2 . 0 J / mol . 0 . 5 0 g of methane is used to heat 4 5 . 0 mL of water at 2 4 . 0 \ deg C . What is the final temperature of the water ( assuming perfect heat transference ) ?

20.71 If 24.0% of a sample of radioisotope decays in 8.73s, what is the half-life of this isotope (in seconds)? 20.72 If 20.0% of a sample of zinc- 65 decays in 69.9d, what is the half-life of this isotope (in days)
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Gaseous ethane (CH3CH3) reacts with gaseous oxygen gas (O2) to produce gaseous carbon dioxide (CO2) and gaseous water (H2O). if 137 is of witter is produced from the reaction of 1.2g of ethane-and 3.2g of oxygen gas, citculate the percent yled of water. Round your answer to 2 significant figures
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Write the products or reactants:

The ionic equation for the reaction between ( mathrm{LiOH} ) and Saicylaldehyde is given as: Molar mass of ( mathrm{LiOH} . mathrm{H}_{2} mathrm{O}=41.965 mathrm{~g} / mathrm{mol} ). Molar mass of ( mathrm{LiC}_{7} mathrm{H}_{5} mathrm{O}_{2}=128.06 mathrm{~g} / mathrm{mol} ). Initial mass of ( mathrm{LiOH} . mathrm{H}_{2} mathrm{O}=1.218
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Use the References to access important values if needed for this question. The free energy change for the following reaction at 2 5 C , when [ C u 2 + ] = 1 . 1 6 M and [ P b 2 + ] = 0 . 0 0 2 8 4 M , is - 1 0 4 k J : C u 2 + ( 1 . 1 6 M ) + P b ( s ) C u ( s ) + P b 2 + ( 0 . 0 0 2 8 4 M ) , G = - 1 0 4 k J What is the cell potential for the
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For the following equilibrium reaction, determine the expression for the concentration of \( \mathrm{NO}_{2} \). \[ \mathrm{NO}_{2} \mathrm{Cl}(g)-\mathrm{NO}_{2}(g)+\mathrm{Cl}(g) \] (a) \( \left[\mathrm{NO}_{2} ight]=\frac{k_{1}\left[\mathrm{NO}_{2} \mathrm{Cl} ight]}{k_{-1}[\mathrm{Cl}]} \)

How yow can distinguish between the carbonyls aldehyde, Keton, an curbany/s, carboxylic acid and esters, amide
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The graph below represents the following system at equilibrium at 2 5 C . 2 S O 2 ( g ) + O 2 ( g ) l o n g r i g h t a r r o w 2 S O 3 ( g ) H = - 1 2 0 k J Sketch the changes in concentration that might occur if a . All the S O 2 was suddenly removed at 1 0 min. Equilibrium was re - established at 3 0 min. b . The system was warmed up starting
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1 1 . a ) Draw the Lewis structure for ammonia ( NH 3 ) . Be sure to include any lone pairs. b ) Draw a VSEPR diagram for ammonia. What is the name for this arrangement of bonds? c ) Compared to methane ( see question 1 0 above ) are the bonds in ammonia closer together or further apart? What is the reason for this? d ) Between ammonia and

5. Given the following partial electronic configurations. I [Ne] 3s23p2 II [He] 2s22p5 III [Kr]5s2 IV [Ne]3s23p4 (a) Identify each element. (b) Rank the four elements in order of increasing atomic size. (c) Rank them in order of increasing ionization energy. (PO3, Marks: 04)
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Curfent Attempt In Progress caloritr/s"c) eTotboek and Media COTutorial
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calculate the percentage yield of this reaction please with steps CH3COOH Figure 1. Synthesis of cinnamic acid through Perkin reaction
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The equation is 4 FeS ( s ) + 7 O 2 ( g ) - > 2 Fe 2 O 3 ( s ) + 4 SO 2 ( g ) , the release is 2 5 1 kJ a ) Determine the molar enthalpy change for the oxygen gas b ) Re - Balance your chemical reaction to use the molar enthalpy change of oxygen gas ( as a reactant or product, whichever is appropriate ) ( this also means use your answer from a to

What is the product of the following reaction? 2
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What is the pH of a 0.1M NaF solution? Ionization constant for HF Ka = 7*10^-4. Answer = 8.1, please explain

Rewrite the original reaction to show one mole of each of thefollowing reacting. Use the appropriate molar enthalpy from question 2 within each equation. a ) Bi: b ) O 2 : c ) Bi 2 O 5 : Original equation is 4 Bi ( s ) + 5 O 2 ( g ) - > 2 Bi 2 O 5 ( s ) The heat release is 3 3 6 0 kJ The enthalpys from question 2 are AHBi = - 8 4 0 kJ / mol, AHO 2

Please help Classify the following compounds as chiral, achiral (but not meso), or meso
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Glven the following thermochemical equations, calculate the value of H(in vilojouies) for the reaction 4NH3(s)+3O2()2N3(s)+6H2O()
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QUESTION 5 Worksheet # 6 Calculate the osmotic pressure of a solution that contains 0 . 0 0 2 0 0 mol CaCl 2 and 0 . 0 0 2 0 0 mol NaCl per liter of solution at 2 9 8 K .

40. What is the [OH-] of a solution which is 0.18M in ammonium ion and 0.19M in ammonia? Kb = 1.8*10^-5 Answer = 1.0*10^-5, please explain

The methanation reaction 3H2(g)+CO(g)CH4(g)+H2O(g) is used commercially to prepare methane. A gas reactor with a volume of 1.00102L is filled at 302C with 19.74atm of H2 and 9.87atm of CO.145g of CH4 is produced. What is the percent yield of the reaction
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Draw thenmost stable conjugate base for each compound below (one hydrogen removed). d)
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Arrange the following species in order of increasing ionic radius: Sn4+,Ag+,Cd2+,Au+Smallerradius,Largerradius
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Which one of these two species has a lower ionization energy? Mg,Mg+: Briefly explain
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A 3 5 . 0 m L sample of ascorbic acid, HA , is titrated with 2 0 . 0 m L of a 4 . 0 1 0 - 2 m o l L sodium hydroxide solution. What is the p H of the resulting solution at the equivalence point, if K a for ascorbic acid is 9 . 1 1 0 - 5 ?
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Consider the following reaction at equilibrium: A ( g ) 2 B ( g ) Note: Reference the Fundamental constants table for additional information. Part 1 of 2 Round each of your answers to 3 significant digits. From the data shown below in the table, calculate the equilibrium constants ( both K c and K P ) at each temperature. \ table [ [ Temperature (
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IUPAC name to this structure?
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What is the main function of triacylglycerol: A. regulates the immune system B. signal sender C. blood pressure modification D. used in DNA production E. long term energy storage
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. The coupling constant, J, between the protons of chloroethane is 7 Hz when the spectrum is obtained at 250 MHz. What is the coupling constant between these protons when the spectrum is acquired at 500 MHz?

Given the reaction below identify the Match each item to a choice: Give the major product for the following reactions. Match each item to a choice: Give the major product for the reaction below. H2OA Match each item to a choice
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When 2 . 6 5 g of calcium chloride ( CaCI 2 ) is added to 1 0 0 . 0 0 mL of water, the temperature rises from 2 3 . 0 \ deg C to 3 0 . 1 \ deg C . What is the molar enthalpy of solution?

2 5 . 4 0 Draw a bond - line structure showing the zwitterionic form of each of the following amino acids: ( a ) L - Valine ( b ) L - Tryptophan ( c ) L - Glutamine ( d ) L - Proline 2 5 . 4 4 Draw all stereoisomers of L - isoleucine. In each stereoisomer, assign the configuration ( R or S ) of all chiral centers.
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At 7 0 0 K acetaldehyde decomposes in the gas phase to methane and carbon monoxide. The reaction is: C H 3 CHO ( g ) C H 4 ( g ) + C O ( g ) A sample of C H 3 CHO is heated to 7 0 0 K and the pressure is measured as 0 . 3 2 atm before any reaction takes place. IIne kinetics of the reaction are then followed by measurements of total pressure and
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Draw the structures of the products formed by hydrolysis of the following tripeptide at physiological pH. Ser-GIn-Val Note: Reference the Naturally occurring amino acids data table for additional information
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Give the product (or products) that you would expect to be formed in each of the following reactions. In each case give the mechanism ( \( S_{N} 1, S_{N} 2, E 1 \) or \( E 2 \) ) by which the product is formed and predict the relative amount of each (Major, minor etc.) \[ \begin{array}{l} \text { 3-Chloropentane }+\mathrm{CH}_{3} \mathrm{CO}_{2}

Calculate the energy in each case given below and rank them in terms of decreasing energy: ( a ) = 4 7 3 n m ; ( b ) = 6 4 5 n m ; ( c ) = 4 5 3 n m ( PO 1 , Marks: 0 4 )
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The correct name for the structure shown is: a. (3E)-3,4-dimethylhept-3-ene b. (3E)-2-ethyl-3-methylhex-3-ene c. (2E)-3-ethyl-3-propylbut-2-ene d. (2E)-3-methyl-2-propylpent-2-ene

1 . Identify a modern technology that functions based on quantum mechanical principles. Explain how this technology works as if you were describing it to a friend or family member who has not taken this course. 2 . What is meant when we refer to elements in the periodic table as belonging to the s - block or the p - block. Give an example of each.

How many unsaturations for a molecule with the molecular formula: C 6 H 1 0 BrN

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