A certain reaction is spontaneous at 65 ° C. If the enthalpy change for the reaction is  15 kJ/mol,  what is the minimum value of  Δ S (in J/K · mol) for the reaction.

Q: Analysis of the gases in a sealed reaction vessel containing NH 3, 2, N, and H2 at equilibrium at 40...

A: Given, the equilibrium reaction as follows,N2(g)+3H2(g)⇌2NH3(g)and the equilibrium concentration of ...

Q: At a certain temperature the rate of this reaction is second order in SO, with a rate constant of 0....

A: Given, 2SO3(g) ➝ 2SO2(g) + O2(g) Reaction is a second order reaction. Initial concentration of SO3 =...

Q: Assign the correct stereochemical configurations to each of the chiral centers in 1-bromo-2-chlorocy...

A: Assign stereochemistry of the given structure--

Q: Emission lines from the PASCHEN SERIES would appear in the __________________ region of the electrom...

A: In this question, Emission lines from the Paschen series would appear in the __________________ regi...

Q: To what temperature would you have to heat carvone, an oil giving spearint its odor,(l) to cause its...

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Q: Identify which of the graphs represent the given titration experiments best. Graph A Graph B 12 12 1...

A: Titration is a process in which amount of solute in a solution of unknown concentration is determine...

Q: volume

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Q: alculate ΔSsys for the heating of 2.00 moles of nitrogen from 25ºC to 200ºC.

A: Entropy of system is given by the equation: ∆S = ∫ nCPTdT Initial temperature =  250C = 2980K  Final...

Q: Why are the boiling points of immiscible mixtures lower than the boiling points of the two individua...

A: Boiling point is the temperature at which the vapor pressure of liquid become equal to the external ...

Q: Calculate the mass of 0.11 moles of Cu(NO3)2. grams Give your answer to 2 decimal spaces.

A: Given that , No. Of moles of Cu(NO3)2 = 0.11 moles   

Q: What are the types of gravimetric methods? Give an examples where each method is used in an analysis...

A: Generally, there are four types of gravimetric methods which are listed below - - > 1 -Volatiliza...

Q: Consider the substitution reaction shown below. By what mechanism will the reaction proceed? NaCN Br...

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Q: Give a structure to match the name of each of the following compounds. - butanone -acetaldehyde

A: Ketones are functional groups whose name end with -one suffix and aldehydes are also functional grou...

Q: Question 5 The reaction of n-butylbromide and the methoxide anion (CH3O) is found to follow the foll...

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Q: The rate of a certain reaction is given by the following rate law: rate = k[H,][L] Use this informat...

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Q: for hypochlorous acid, HClO, is 3.0×10-8. Calculate the pH after 40.0 mL of 0.100 M NaOH have been a...

A: Ka(HClO) = 3.0 × 10^-8 Volume of NaOH = 40.0 ml Molarity of NaOH = 0.100 M Volume of HClO = 40.0ml M...

Q: I. Observing pH Changes in Water and Buffer Solutions upon Addition of HCl and NaOH Solutions soluti...

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Q: 1. Calculate the Ms value of a many-electron wavefunction composed of 4 a electrons and 3 B electron...

A: Concept: ms  (spin quantum number): Spin Quantum Number Specifies the orientation of the spin axis o...

Q: Consider the following data on some weak acids and weak bases: acid base K, name formula name formul...

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Q: What is the theoretical yield of an aldol condensation reaction involving cyclopentanone as the keto...

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Q: Decide if the following are isoelectronic series. If it is an isoelectronic series select True, if n...

A: Group of atoms or ions having the same number of electrons are called isoelectronic series.  No.of e...

Q: Consider this overall reaction and its proposed mechanism. Write a valid rate law expression for the...

A: Chemical kinetics can be defined as the branch of chemistry that deals with rates of chemical reacti...

Q: 4. A sample of phosphorus weighing 2.50 grams is burned in the presence of oxygen. WhatR the empiric...

A: Solution -

Q: e moles

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Q: K for the reaction of hydrogen and iodine to produce hydrogen iodide. H2(g) + I2(g) 2HI(g) is 54.3 a...

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Q: d) A(n) reaction is one where the products have lower energy than the reactants. is a device used to...

A: (d) --> An exothermic reaction is one where the products have lower energy than the reactants. (e...

Q: Consider the substitution reaction shown below. By what mechanism will the reaction proceed? Br HOCH...

A: There occur substitution reaction.  

Q: show the stereochemistry

A: show the stereochemistry.,

Q: What piece of equipment should you use in order to obtain the mass of the weighing form? A Top-loadi...

A: A triple beam balance is used to measure mass of the weighing form with precisely. If you want to fi...

Q: 26. The chemical reaction below is an example of what type of reaction: Mg(s) + H2SO4(aq)→ MGSO4(aq)...

A: Mg(s) + H2SO4(aq) ---> MgSO4(aq) + H2(s)  

Q: For the reactions below write out the overall reaction and the equilibrium constant expressions for ...

A: Chemical equilibrium is defined as the stage at which both reactant and product are in equilibrium. 

Q: Give clear handwritten final major product only

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Q: Cl CI CI

A: Here the first ketene formation takes place :  This reaction is called the Schmidlin ketene synthesi...

Q: 5. What mass of NaHCO3 reacts in order to produce 450. g of NazPO4? 6. Calculate the percent yield o...

A: 6) Note: Providing solution of question 6 as you have asked: Given, 3NaHCO3 + H3PO4 → 3CO2 + 3H2O + ...

Q: 7. Identify the element Xwhich forms a polyatomic ion with the following Lewis Structure? [:CI-X-Cl:...

A: Lewis’s structure: Lewis’s bonding theory is based on the octet rule. The Lewis structure is a simpl...

Q: A solution of HCN was prepared in 2.5 L of water.  The pH of this solution at 25°C was determined to...

A: We have to calculate the moles of HCN.  

Q: needs to synthesize 2-pentanone from 1-butyne. help her by suggesting a synthetic scheme she has to ...

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Q: A 500.0 mL sample of water is placed in a large container with pure N2 (g) at a pressure of 782 mmHg...

A: Answer:-  Given :- volume of water is 500.0 mL                pressure of N2 gas is 782 mmHg        ...

Q: 3. ) The sour taste of lemons is attributed to citric acid. The dissociation of citric acid in water...

A: In ladder diagram we show acid and it's conjugate base . Between them se write pKa or Ka value for t...

Q: Enter your answer in the provided box. The reaction 2A → B is first order in A with a rate constant ...

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Q: Draw out the full mechanism between anthracene-9-methanol and n-methylmaleimide

A: We have to predict the mechanism for given reaction.  

Q: e coordination number for

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Q: How many grams of lodine should be used in preparing 5000 mL of 1:20 solution?

A: 1:20 means 1 g of Iodine is dissolved in 20 ml. So we have, 20 ml dissolves 1 g Therefore,  1 ml dis...

Q: nucleus was fused with another nucleus (by chance) to form heavier elements such as Cr, Ni, Fe. You ...

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Q: A liniment contains 15 % (v/v) of methyl salicylate. How many mL of the liniment can be made from 1 ...

A: The concentration of methyl salicylate in liniment is = 15 %(v/v) The volume of liniment can be made...

Q: a 0.55 M solution of a monobasic compound B has a pH of 11.32, what is the Kb value of the base B

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Q: Given that the collision diameter of helium is 2.15 Å, calculate the mean free path of helium at sea...

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Q: An aqueous solution contains NANO3 and KBr. The bromide ion is precipitated as AgBr by the addition ...

A: An aqueous solution contains NaNO3 and KBr. The bromide ion is precipitated as AgBr by addition of A...

Q: Calculate the pH of the following: - 0.10 M disodium hydrogen arsenate

A: To calculate pH , we would use dissociation equation of disodium hydrogen arsenate and it's Ka value...

Q: Titrations are generally both more accurate and more precise the smaller the concentration of titran...

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