The preexponential and activation energy for the diffusion of iron in cobalt are 1.1 x 10-5 m2/s and 253,300 J/mol, respectively. At what temperature in Celsius will the diffusion coefficient have a value of 1.4 x 10-14 m2/s? Use R = 8.314 J/mol K.

Q: When an exothermic reaction is starting: a. The reacting materials will not change their energy b....

A: An exothermic reaction is the one in which heat is released in the process of reaction. Endothermic ...

Q: 3. Consider the ion Bt (treat it as a hydrogen-like, one-electron atom within the Bohr model having ...

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for...

Q: e volume in m

A:

Q: For each reaction, write the chemical formulae of the oxidized reactants in the space provided. Writ...

A: Given reactions: We have to find the substances that are oxidized and the substances that are reduc...

Q: Choose the correct starting material for the following reaction. он MgBr MgBr H. A B D

A:

Q: pressure

A:

Q: A +B = A-B The formation of non-covalent complexes in water is a fundamental reaction in bioorganic ...

A: Given kon = 1.00*108 M-1.s-1  Kd = 5.00*10-7 M  We have to find the half-life, t1/2 of the reaction....

Q: For the following reaction, 12.0 grams of magnesium nitride are allowed to react with 17.5 grams of ...

A: mass of magnesium nitride =  12.0 grams mass of water = 17.5 grams

Q: Metallic calcium crystallized in a face-centered cubic lattice, and the atomic radius of calcium is ...

A:

Q: An analytical chemist is ttrating 179,5 ml. of a 0.5300 M solution of formic acid (H,Co.) with a 1.1...

A: Given,  Concentration of HCOOH = 0.5300 M  Volume of HCOOH = 179.5 mL  Molarity of HCOOH = 1.100 M  ...

Q: 12-G. Iminodiacetic acid forms 2:1 complexes with many metal ions: CH2CO;H H2N = H3X* CH2CO3H ax2 = ...

A:

Q: lyxose in Haworth projections; make a reducing sugar and a non-reducing sugar for the disaccharide. ...

A: Answer has been provided in next step

Q: A chemist must prepare 400.0 mL of hydrochloric acid solution with a pH of 1.20 at 25 °C. He will do...

A: This problem can be treated under the topic of dilution. M1V1=M2V2 equation is used in such case.

Q: How many moles of bonds between which pairs of atoms form during the combustion of 8 mol CH4? Treat ...

A: Combustion reaction is always exothermic...in combustion reaction  hydrocarbons react with oxygen gi...

Q: What energy level (n value) can one hydrogen electron be excited to by light with a wavelength of 11...

A:

Q: (a) Select all of the correct statements about the relative acid strengths of pairs of acids from th...

A: The strength of the acid can be determined by the stability of the conjugate base after the donation...

Q: n a calorimeter, 300 mL of 0.22 mol/L of calcium chloride is mixed with 200 mL of 0.33 mol/L of sodi...

A: Moles of substance = Molarity * Volume  Heat given in any process = Mass * Specific heat * Temperatu...

Q: e molecular mass o

A:

Q: Identifying acids and bases by their chemical formula Classify each chemical compound listed in the ...

A: The classification of the above compounds are given below

Q: For each reaction, write the chemical formulae of the oxidized reactants in the space provided. Writ...

A:

Q: A buffer solution is made using a weak acid, HA with a p?a of 7.77. If the ratio of [A−] to [HA] is ...

A:

Q: The rate constant for a reaction is 7×10−3sec−1 at 25°C and the Arrhenius frequency factor is 3646.3...

A:

Q: In a reaction between copper metal and aqueous iron (III) chloride, Fe3+(aq) is reduced to Fe2+(aq),...

A:

Q: A diver has an initial lung volume of 1.98 L, which is filled with compressed air atmosphere of 35.1...

A:

Q: An branched structure of the polysaccharide molecule will decrease the hydrodynamic volume which wil...

A:

Q: 1. This titration curve could represent 20 ml of 0.1 M with 0.1 M NaOH. The buffer region(s) is/are ...

A: We are given the titration curve for the titration of an acid with strong base, NaOH. 

Q: . A solution of 12.0 g of a nonvolatile, nondissociating compound dissolved in 0.200 kg of benzene b...

A:

Q: What is the major organic product obtained from the following reaction? OCH2CH3 1. NaOCH2CH3 CH3CH2O...

A:

Q: Draw the major organic product of the reaction. Draw hydrogens bonded to oxygen or nitrogen, where a...

A:

Q: What is the systematic name for the comp N' H.

A: 1. Select the principle carbon chain 2. Numbering 3. Naming (prefix + word root + suffix)

Q: Hz O catalytic Ho SOy

A: Alkene can form alcohol when reacts with H2O in presence of acidic medium. -> Here reaction occur...

Q: Draw curved arrows to show electron reorganization for the reaction step below. Arrow-pushing Instru...

A:

Q: Sketch and explain, the number of atoms, coordination number and void space of a body centered cubic...

A: Contribution of the atoms present in the corners of the unit cell (per unit cell)=8*18=1 Contributio...

Q: Question 19 Which of the following cause and effect relationships below is incorrect? O higher H-bon...

A:  19. Among the 4 options, one of them is incorrect. Other 3 options are correct.  Carbohydrates are ...

Q: For each reaction, write the chemical formulae of the oxidized reactants in the space provided. Writ...

A:

Q: 1. Use a reliable internet source to find a theoretical average value for the partial pressure of CO...

A:

Q: 1)Consider the following galvanic cell at 25°C Pt|Br" (aq) (0.25 M), H* (aq) (0.1 M) |Br2 () || 02 (...

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any ...

Q: 4. What is the boiling point elevation when 143 g of lactic acid (CeH10Os) is dissolved in 647 g of ...

A:

Q: Apart of the character table of a point group (of order 4) is given below (4) HOC p'HN (?) EXX X, GI...

A: According to great orthogonality theorem, summation of  product of characters of any two of the rows...

Q: redox reaction? Oyes ou O reducing (1)0'H + (bn) os (bp) HO + (bD)'OSH agent: oxidizing agent: redox...

A:

Q: A chemist dissolves 839. mg of pure nitric acid in enough water to make up 380. mL of solution. Calc...

A: Given, mass of nitric acid (HNO3) = 839 mg = 0.839 g Volume of the solution = 380 mL = 0.380 L pH of...

Q: Determine the pH for the following 0.250 M NaCH,СОО (Ка — 1.8 х 10-5) a) 3.2 x 10-6 М Вa(ОН)2 b) 0.2...

A:

Q: Predict the product for the OH HO HO II HO но II IV Но alyo

A:

Q: 7.46 g of ammonium persulfate is dissolved in 112.0 mL of water. Initially the temperature of the wa...

A:

Q: Refer to the following molecule: CH,CH, H. C-Br H,C NO2 How many achiral carbons are there? (Select ...

A:

Q: COH H2SO4 (cat) NaOH HO CH3OH B CH3OH 4. H2SO4 (cat) OCH3 H2SO4 (cat) D+E C H20 H20 NaOH G +H H20 OC...

A:

Q: Problem 2. Consider the following reaction: OH + CO CO2+H The value of the forward rate coefficient ...

A:

Q: The following reaction is used in commercial cold packs. NH4NO3(s) + 25 kJ NH41+(aq) + NO31-(aq) Th...

A: The chemical reaction is as follows  NH4NO3 (s) + NH4-  +(aq) + NO31-(aq) The amount of heat which i...

Q: 18.4 (Pages 803-817): Watch KCV18.4A, IWE 18.6. • Part C Consider the titration of a 35.0 mL sample ...

A: C.) HBr is a strong acid and KOH is a strong base , so they would undergo neutralization reaction to...

Q: Noting the curved arrows, draw all the product(s), organic and inorganic, of the following reaction....

A: ->-OH has nucleophilic character hence, it can give nucleophilic addition - elimination reaction....