The activation energy for the reaction CH3CO - CH3+ CO is 71 kJimol. How many times greater is the rate constant for this reaction at 170°C than at 150°C? Multiple Choice 4.0 25 040 11 50

Q: For the overall chemical reaction shown below, which one of the following statements can be rightly…

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Q: Saved The following mechanism has been suggested for the reaction: 11 H2O2 + 2H+ + 21-→ I2 + 2H2O…

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Q: Draw the structure of a naturally occurring amino acid that contains a thiol.

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Q: A) an insoluble ionic solid B) a soluble ionic compound C) an immiscible molecular compound D) a…

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Q: Calculate the heat energy released when 19.0 g of liquid mercury at 25.00 °C is converted to solid…

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Q: Indicate the two most representative tautomers of the following compound, drawing to the right right…

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Q: 3. In butane and pentane, what are the Newman projections that show synclinal and antiperiplanar…

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Q: What type of elements in the periodic table cannot break the octet rule by having an expanded octet?…

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Q: A chemist adds 0.30 L of a 2.04M sodium thiosulfate (Na, S,0,) solution to a reaction flask.…

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Q: A chemistry student weighs out 0.0690 g of hypobromous acid (HBrO) into a 250. mL volumetric flask…

A: Given: Mass of HBrO = 0.0690 g. And concentration of NaOH = 0.1700 M

Q: sodium azide, NaN3, that reacts to produce nitrogen gas when heated, thus inflating the bag.…

A: Given, Mass of NaN3 = 32.9 g Molar mass = 65 g/mol Mole of NaN3 = 32.9/65   = 0.506 mol From…

Q: use this equation 2 Al + 6 HCl = 2 AlCl3 + 3 H2 How many grams of aluminum are required to react…

A: The balanced reaction taking place is given as, => 2 Al + 6 HCl → 2 AlCl3 + 3 H2  Given:…

Q: 103 IR LUU 13C NMR ppm 209.13 178.49 50 42.35 32.95 29.87 18.64 4 D00 3000 1000 e000 1500 S00…

A: The proton and carbon NMR helps us to find the structure of any given unknown organic compound by…

Q: The equilibrium constant, Kc, is 0.022 at 25°C for the reaction below. What is the concentration of…

A: Given :-  PCl5 (g) ↔ PCl3 (g) + Cl2 (g)  initial moles of PCl5 = 0.80 mol  Volume = 1.00 L  Kc =…

Q: For each of the reactions at constant pressure, determine whether the system does work on the…

A: Work done in chemical reaction- > W = -∆ngRT Where ∆ng = ng(product) - ng(reactant)

Q: Весause s is a strong acid, it dissociates almost com- pletely in water. That means the…

A: We have given that, the concentration of H+ is nearly equal to the concentration of HNO3.

Q: Identify the major aldol condensation product obtained when the following compound is heated in the…

A: Given compound is pentanal  And it has aldehyde functionality. It is a base catalyst reaction.…

Q: 1. BH3, THF 2. NaOH, H202 Br2 но Et NaOH, H20 HBr, ROOR OMe

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Q: 5.10 moles of a compound are heated to boiling point, at constant pressure, absorbing 797 kJ of…

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Q: Draw the structure of the amino acid L-leucine at each pH: (a) 6; (b) 10; (c) 2. Which form…

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Q: In mining, roasting is the oxidation of metal sulfides to produce metal oxides and sulfur dioxide, a…

A: Weight of ZnS = 100.0 gm Weight of O2 = 70.0 gm

Q: Which of the following combinations can be used to make a buffer? assume equal values are used A.…

A: For buffer solution : we take weak acid/ weak base and it's conjugate base / conjugate acid.....

Q: Name the alkyne. S

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Q: Br2(l) + 2 e - 2 Br (aq)E° = +1.09 V Min°+ (aq) + 2 e -- Min (s) E° = - 1.18 V which of the…

A: We have to find the strongest reducing agent.

Q: Oxygen gas and liquid ethanol react to form carbon dioxide gas and liquid water. If ethanol is…

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Q: _t volume of the 1.76 M H2O2

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Q: Fig. 1 shows the possible effect of pH on recovery and impurity removal at the selection of a…

A: The Y-axis of the graph represents the percent recovery of the impurity, and the X-axis of the graph…

Q: II. Balance each redox reaction in acid solution using the half reaction method. 7. ReO4 + IO → IO3…

A: Balanced the reaction by using half-reaction method under acid solution---

Q: use this equation 2Na3PO4(aq) + 3Ba(OH)2(aq) → Ba3(PO4)2(s) + 6NaOH(aq) How many moles of…

A: The balanced reaction given is, => 2 Na3PO4 (aq) + 3 Ba(OH)2 (aq) → Ba3(PO4)2 (s) + 6 NaOH (aq)…

Q: In a study of the gas phase decomposition of phosphine at 120 °C PH3(g) 1/4 P4(9) + 3/2 H2(g) the…

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Q: The decomposition of antimony pentachloride (SbCl5) is described by the following equation:…

A: 1. Given :-  SbCl5(g) ⇔ SbCl3(g) + Cl2(g)  [SbCl5] = 3.557  M [SbCl3] = 1.181  M  [Cl2] = 4.189 M…

Q: For the following reaction, AP(C6H14VAt was found to be -6.2 x 10-3 atm/s. COHA(@) → C6H6(g) +…

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Q: Question 3 Green Chemsitry: Select among the possible answers the corect answer for each of these…

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Q: solution was standardized using 0.256 g of sodium carbonate. (Na2CO3 = 106 g/mol; HCl = 36.46 g/mol)…

A: Given,  Mass of Na2CO3 = 0.256 g Na2CO3 = 106 g/mol; HCl = 36.46 g/mol) Moles of Na2CO3 = mass/Molar…

Q: A chemist fills a reaction vessel with 3.93 atm methane (CH) gas, 1.61 atm oxygen gas, 5.89 atm…

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Q: on dissolving into their respective solvents (water in all cases, ex Vis absorption is monitored…

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Q: Order the substances (A, B, C, D, and E) by their specific heat capacities from highest (5) to…

A: The curve given is,

Q: In an experiment where the initial concentration of Fe was 0.00133 M and the initial concentration…

A: Given equilibrium reaction is  Fe3+(aq) + SCN-(aq) <--> FeNCS2+(aq)  Initial concentration of…

Q: Substance AH: Substance AH kJ mole mole |-189 216 206 |-177 |-229 IF B G D 61 Please calculate the…

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Q: Use the standard reduction potentials located in the 'Tables' linked above to calculate the standard…

A: For a electrochemical cell E⁰cell Can be calculated by using the following formula:  E⁰cell = E⁰red…

Q: 1. What is the molarity of a solution in which 150g of Ca© are dissolved in 190ml of solution? (MW:…

A: Formula used:  Molarity: no of Mole/Volume in L  Molality: no of mole of solute/ weight in kg of…

Q: Draw the structure of a naturally occurring amino acid that is a neutral amino acid with a phenol in…

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Q: 2. While a student was preparing a series of standards, the pipette that he used for dilution was…

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Q: a. Predict the molecular structure and bond angles for PO,3. Approximate bond angles are sufficient.…

A: Given-> 1-> PO43- 2->SO42-

Q: 4 Find the nuclear binding energy of potassium-40 (atomic mass = 39.9632591 amu) in units of joules…

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Q: The precipitate formed when Ni(NO3)2 is mixed with Li2S is A. Ni2S B. NiS C. LiNO3 D. Li2NO3

A: Choose the correct option for the precipitate formed -

Q: How will the system respond to an increase in the amount of S? S(s) + 0,(g) = SO,(g) AH < 0 Select…

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Q: Post Lab Questions 1. Are there any deshielding effects seen in your NMR? What is causing this…

A: 1) Yes , there is de-shielding effects can be in the nmr spectra of the given compound. There are…

Q: Balance the reaction below; determine the sum of the coefficients; this is in an acidic solution!…

A: The reaction given is, =&gt; BrO3- + Cd ↔ Br2 + Cd2+