11) The photo-decomposition reaction mechanism of HI can be expressed as follows, HI+hv→H+I, H+H→H₂+I, I+I+M→L₂+M The primary quantum yield of this reaction is (a) 1 (b) 2 (c) 4 (d) 106
Q: نقطة واحدة نقطة واحدة can be heating and ......33 .reshaped is A. Thermoset. O B. Thermoplastic. O…
A: Thermoplastic polymer are those polymer which can be reshaped by changing the temperature is called…
Q: Suppose the following exchange of water reactions were carried out by an associative mechanism…
A:
Q: Calculate the entropy of the equation below: 4 KCIO3(s) → 3 KCIO4(s) + KCI (s) KCIO3 = 142.97…
A:
Q: A 1.00 L flask initially contains 4.40 mol of HI at a certain temperature. The K at this temperature…
A:
Q: Is iodine monochloride in solid form conductive with respect to electrical conductivity? Why or why…
A: Iodine monochloride is a Black solid. Iodine monochloride is polar in nature due to…
Q: A 10.6 g sample of an aqueous solution of nitric acid contains an unknown amount of the acid. If…
A:
Q: What is the advantage of using automated peptide synthesis? A) No side products are formed. B) Ease…
A: Automated peptide synthesis is a fast and easy to synthesize many peptides simultaneuosly. It…
Q: 34. ................annot be heating and reshaped is. OA. Thermoset. OB. Thermoplastic. 35. The…
A:
Q: Chemistry A sample of solid gold is heated with an electrical coil. If 19.4 Joules of energy are…
A: (1) Given that - Mass of solid gold M= 11.3 g Heat energy used Q = 19.4 joules Final temperature…
Q: What would be the product if D-allose is reacted with a.. 1.) NH2OH then 2.) (CH3CO)2O, NaOCOCH3…
A: D-allose reaction with the following reagents .
Q: Maps Question 13 of 31 Provide the correct IUPAC name for the skeletal (line-bond) structure shown…
A: Let us discuss rules of IUPAC and name the given compound.
Q: This monosaccharide is in its form. CHO H-OH HO- -H HO- -H Select one: O a. It is "L" since the C4…
A:
Q: 15. Network polymer structure is. O A. Branching. O B. Liner. OC. Cross-link. 16. Strong bonding in…
A: Answers for questions number 15-17 with explanation given below.
Q: Chemistry Perform the following syntheses. Use the retrosynthetic analysis shown in the example. Be…
A: Detail retro synthesis as well as forward reaction is given below
Q: 18. Degradation or O A. is irreversible. OB. Is reversible. decomposition. This curing…
A: Degradation or decomposition is the process in which polymer breakdown into its fragment is called…
Q: The order is for 15mg subcutaneous every other day. You have on hand Relistor 15mg in every 0.4mL…
A: Given, 15mg must be administered every other day 15mg Relistor in 0.4 mL present
Q: General formula of alkyne -25 .compounds are A - CnH2n+2 O B - CnH2n-2 O C - CnH2n O Methane…
A: #26: Methane, CH4 molecule has C at the center which is bonded to 4 H atoms through sigma bond.
Q: Write the oxidation half reaction of this equation. 2 Al +3 Cu²+ 2Al³+ + 3 Cu
A: Oxidation is the increase in oxidation state of the atom or metal. For example, when Aluminium…
Q: Metamphetamine is a CNS stimulant that acts by both from nerve termina facilitating the release of…
A: For a compound to show an agonist effect (a drug bind to a receptor inside a cell) it must have a…
Q: The E2 Mechanism Draw the major and minor elimination products for the reaction of…
A:
Q: 3. A student failed to completely decompose all of the KCIO,(s) present in their sample, leaving…
A: We have to discuss whether any changes occur or not.
Q: 35. The polymer is if heated too much, they burn is. O A. Thermoset. B. Thermoplastic.
A: A question based on introduction to polymer that is to be accomplished.
Q: IR Spectrum (quad fam) 4000 100 80 60 40 S 20 % of base peak 3000 2000 45 40 13C NMR Spectrum (50.0…
A:
Q: 40- Bond angle in acetylene is. A - 120⁰ B-180⁰ C - 109⁰ A B 41-Bond angle in acetylene is. A-120⁰…
A:
Q: An element with the electron configuration [noble gas] ns2 (n-1)d10 np4 has [number] valence…
A: We know that, Number of valence electrons= number of electrons present in valence shell
Q: In the hydrolysis (saponification) of ethyl acetate, a plot of In(K₁-K) against time is a straight…
A:
Q: If 1.1g of 100.0C steam begins to condense on a container of liquid water at 25.0C and they…
A:
Q: Acetylene molecule C2H2 the - 28 .hybridization is A - Sp¹ B - Sp² C-Sp³ A B C The hybridization of…
A: In first question, we will identify the hybridization in Acetylene and in the last two question we…
Q: When the number of protons changes, the identity of the element changes. Many actinides are formed…
A: A question based on nuclear chemistry that is to be accomplished.
Q: below? CHO -OH 1. NH₂OH 2. Ac₂0, 100°C HNO3 -OH 3. HG, HO A HO -H H -OH CH₂OH ect one: a. The…
A: In this question, we will draw the final product structure and identify it is optically active or…
Q: 23 - General formula of alkene compounds are. OA - CnH2n+2. O B-CnH2n-2. O C-CnH2n. 24 - The…
A: Detail description is given below
Q: There are 12 inches in 1 foot and 3 feet in one yard. There are 1760 yards in 1 mile. a. How many…
A: To solve the given questions, use the dimensional analysis and conversion factor to calculate…
Q: The term used to separate a mixture of enantiomers of amino acids using chiral reagents? A)…
A: When enantiomer of mixture are separated using chiral reagent is called isomeric resolution . In…
Q: Use the following atomic masses (in g/mol): As = 74.92; O = 16; K = 39.1; Cr = 52; Na = 23; Cl =…
A:
Q: Drag each tile to the correct location. Match each process to where it occurs in the carbon cycle.…
A: There are many cycles on the earth that lead to the balance of the natural system. Each cycle has…
Q: 12) The most abundant porphyrins in nature are found in hemoglobin and the chlorophylls. The parent…
A:
Q: A) 1) One of the following four structural formulas is not a permissible resonance contributor which…
A: Since you have asked multiple question, we will solve the first question for you.If you want any…
Q: the change in volume of a 3.26 L sample of Argon, at 0.999 atm, that is heated from 22 oC to 35o C…
A:
Q: 35. The polymer is if heated too much, they burn is. A. Thermoset. B. Thermoplastic.
A: Thermo plastics soften on heating whereas thermosetting plastics do not soften on heating.…
Q: 22- General formula of aromatic compounds are. O A - CnH2n. O B-CnHn+2. O C - CnH2n-2.
A:
Q: .The unit of specific gravity is - 51 A - g/cm2. O B - Without unite. O C-g/cm3. O
A: Specific gravity is the ratio between the density of substance to the density of reference…
Q: 8. ******* Which involve large number of organic reaction donot involve and free radicals OA.…
A: Organic reactions are proceeded by many mechanisms like addition, substitution, elimination, etc.…
Q: What is the correct IUPAC name for the compound shown?
A:
Q: How many milliliters of 0.22 M NaCl Contains 0077 0.077 motes 2
A:
Q: What is the major product of the reaction shown below? A) butane B) 1-butene H₂ C) 1-butyne Pt, heat…
A: Addition of hydrogen to a carbon-carbon double bond is known as hydrogenation. With addition of…
Q: A student is examining a bacterium under the microscope. The E. coli bacterial cell has a mass of m=…
A: Data given: The mass of bacterial cell, m = 1.10 fg = 1.10×10–15 g (1 fg = 10–15 g) m = 1.10×10–18…
Q: How many types reaction only .1 .in organic chemistry A. Seven. O B. Five. O C. Eight. O Reaction…
A: (1) There are mainly following type of organic Reactions - (A) Substitution Reaction - Replacement…
Q: General formula of aromatic - 22/ .compounds are A - CnH2n. B - CnHn+2. O C - CnH2n-2. O
A: Aromatic compounds are composed of a planar ring and pi-electron cloud is delocalized above and…
Q: The most abundant type of mammalian antibody circulating in the blood stream is IgG. A solution…
A:
Q: if you wanted to oxidise ethanol to make ethanal without risking the further oxidation to ethanoic…
A: Given statement is : if you wanted to oxidize ethanol to make ethanal without risking the further…
Step by step
Solved in 2 steps with 2 images
- The degradation of the antibiotic clindamycin stored at 343 K in aqueous solution at pH 4 is found to be first order with a rate constant of 2.49 x 10−7 s −1. Over the temperature range 320 K to 360 K theactivation energy was found to be 123.3 kJ mol−1. (a) Calculate the rate constant at 325 K.(b) The threshold for product safety is 1% degradation. At 295 K the time taken for 1% of the antibiotic to degrade is found to be close to 0.01/ k. Comment on the shelf-life of the drug.It has been proposed that the conversion of ozone into O2 proceeds by a two-step mechanism:O3(g)---->O2(g) + O2(g)O3(g) + O(g)----->2 O2(g)(a) Describe the molecularity of each elementary reaction in this mechanism.(b) Write the equation for the overall reaction.(c) Identify the intermediate(s).(a) Explain the meaning of the sentence:“The velocity laws of reactions are empirical” (b) It can be determined that the velocity law of a generic reaction A +B→Pév = k[A]x[B]y. Plot on a graph the variation of [A] and [P] with time, and explain why v= d[P]/dt = -d[A]/dt. (c) Explain the meaning of the terms k, x and y, in the velocity law, presented in item b: (d) Explain what it means in practice for a velocity law to be of zero order. Plot ,A as a function of t, for the zero-order reaction A→Products. (e) Explain what elementary reactions are and how they can be classified.
- The gas phase reaction between hydrogen and iodine is proposed to occur as follows: step 1: 12 →21 step 2: step 2 H₂ + 2 I (a) Identify the molecularity of each step in the mechanism. step 1 → 2 HI + (b) Write the equation for the net reaction. Use the smallest integer coefficients possible. If a box is not needed, leave it blank. + (c) Identify any intemediates in this mechanism. Intermediate: Enter formula. If none, leave box blank:The radioactive isotope carbon-14 is present in small quantities in all life forms, and it is constantly replenished until the organism dies, after which it decays to stable carbon-12 at a rate proportional to the amount of carbon-14 present, with a half-life of 5550 years. Suppose C(t) is the amount of carbon-14 present at time t. (a) Find the value of the constant k in the differential equation C′=−kC. k= ? (b) In 1988 three teams of scientists found that the Shroud of Turin, which was reputed to be the burial cloth of Jesus, contained about 91 percent of the amount of carbon-14 contained in freshly made cloth of the same material[1]. How was old the Shroud of Turin in 1988, according to these data? Age = ? years [1]: The New York Times, October 18, 1988.The fluorescence of a fluorophore is quenched in the presence of iodide ions. (i) Would the fluorescence quantum yield in the presence of iodide be larger or smaller than the fluorescence quantum yield in the absence of iodide? Explain your answer. (ii) Would the fluorescence lifetime of the fluorophore in the presence of iodide be longer or shorter than the lifetime in the absence of iodide? Explain your answer.
- The activation energy for the isomerization reaction CH3NC(g) → CH3CN(g) is 161 kJ mol−¹, and the reaction rate constant at 600 K is 0.41 s¯¹. (a) What is the value of the pre-exponential factor A for this reaction? (b) What is the value of the rate constant of the reaction at 1000 K?Write the reaction rate expressions for the following reactions in terms of the disappearance of the reactants and the appearance of products: (a) H2(g) + I2(g) ⟶ 2HI(g) (b) 5Br−(aq) + BrO−3 (aq) + 6H+(aq) ⟶ 3Br2(aq) + 3H2O(l)(a) The following equation shows the decomposition of SO;Cl; with a rate constant, k= 5.09 x 10*s' at 320 K: SO:Che) → SO:(e) + Che State the order of the reaction. (ii) Sketch a graph of the reaction rate versus the concentration of SO:Cl. (iii) At 320 K, 1.0 mol of SO:Cl, is left decompose in a 2.0L container. Determine the concentration of SO:Clh after 30 minutes. (b) State two requirements for effective collisions. (c) Explain how the rate of reaction is affected by the following factors: (1) Pressure (1) Particle size
- (a) Define the following terms:(i) Collision frequency(ii) Rate constant (k)(b) The rate constant of a first order reaction increases from 4 X 10-2 to 24 X 10-2 when the temperature changes from 300 K to 350 K. Calculate the energy of activation (JEa). (log 2 = 0.301, log 3 = 0.4771, log 4 = 0.6021, log 6 = 0.7782)The rate of the reaction A + 3 B → C + 2 D was reported as 2.7 mol dm−3 s−1. State the rates of formation and consumption of the participants.25) Consider the following set of reactions. Assume that A, B, C and D are atoms. (1) A + A → B (2) А-В + С-D А-С-D-B (3) A + B-C → A-B-C Order these reactions in terms of increasing significance of the orientation probability (that is the A in the Arrhenius equation). А. (1) (2) < (3) В. (3) < (2) <(1) C. (1) < (3) <(2) D. (1) = (2) = (3) E. (1) < (2) = (3)