Which of the following processes are reversible processes?  A. Burning wood till it becomes ashes  B. cooking pap on a gas stove  C. frictionless moving of a particle to and from  D. eg falling on the ground

Q: Using standard heats of formation, calculate the standard enthalpy change for the following…

A: For a chemical reaction is the difference between total reactant and total product molar enthalpies…

Q: Consider the titration of 80.0 mL of 0.0200 M C6H5NH2 (a weak base; Kb = 4.30e-10) with 0.100 M…

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Q: 8. How many stereoisomers does the following constitution have? OH H₂C=HC -CH=CHCH₂CH3 9. Draw the…

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Q: go Consider the orbital shown. Indicate the number of radial and angular nodes in this orbital.…

A: The number of radial nodes can be calculated using the formula n–l–1.  The number of angular nodes…

Q: What are the coefficients in front of Zn(s) and OH- when the following equation is balanced in a…

A: This can be explained as:

Q: (6) Draw the structure for each solvent and explain why it is polar protic or aprotic. a. DMSO b.…

A: The solvent which can act as proton donor is called as polar protic solvent.  The solvent which…

Q: If mols of HCl and KOH were not equal, how would this reaction change and what steps would I take to…

A: To provide the method to calculate the heat of neutralization of KOH if the number of moles of HCL…

Q: Consider the reaction shown below. PbCO3(s)  PbO(s) + CO2(g) Calculate the equilibrium pressure…

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Q: The ionization energy is the energy necessary to remove an electron from an atom. That is, the…

A: Answer:- This question is answered by using the simple concept of calculation of ionization enthalpy…

Q: Using the smallest whole-number coefficients, what is the sum of coefficients for the balanced…

A: we have to write the balanced equation and determine sum of coefficients in balanced equation

Q: 1. For coexistence curves in a phase diagram for a typical pure substance, which is more sensitive…

A: Sensitivity of phase towards pressure depends on the composition of substance.

Q: A scientist measures the standard enthalpy change for the following reaction to be 184.8 kJ:…

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Q: (CH₂(CH₂) CH₂) reacts with gaseous oxygen gas to produce gaseous carbon dioxide (CO₂) and gaseous…

A: Given -> Weight of octane = 2.3 gm  Weight of O2 = 4.9 gm

Q: -OH 12504

A: 1-methylcyclopentanol react H2SO4 and gives 1-methyl cyclopentene

Q: Phosphoric acid, H₂PO4 (aq), is a triprotic acid, meaning that one molecule of the acid has three…

A: H3PO4 is a tribasic acid. So it can liberates 3 moles of H+. According to question PKa1=2.16…

Q: Given the equation Ag (aq) + 2NH, (aq) [Ag(NH,),]*(aq) K₁= 2.00 x 107 determine the concentration of…

A: Given data :

Q: ] Assuming 4Hfurion is constant, find the pressure necessary to lower the freezing temperature of…

A: Given data: ρice=0.917 g/cm3ρwater=1.000 g/cm3 Tf(1 atm)=273.15 KTf(P2)=263.15 K           (∵…

Q: CH3Br or CH₂I (CH3)3CCI or CH3C1

A: Rate of Sn2 reaction increases if the alkyl halide is less bulky it means rate of reaction will be…

Q: 3. Class 4 lasers can be used to remove tissue scars and to cut through strong metals. Why is this…

A: Lasers are divided into various groups from Class 1 to Class 4 based on the intensity of power…

Q: Draw (S)-4-ethyloctane in a structural condensed format. Use a dash or wedge bond to indicate…

A: We have to draw, (S)-4-ethyloctane

Q: Complete the equation for the ionization of water by drawing the conjugate acid and conjugate base.…

A: This can be explained as:

Q: Arrange the following from lowest to highest entropy: Licl(s) NaBr(s) KI(s) LiF(s)

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Q: Choose the best reagents to complete the reaction shown below. mal H al A B D E 1. NaBH. 2. H₂O* Na…

A: Internal alkynes can be reduced into trans alkene when they react with sodium metal in liquid…

Q: What happens when oxalic acid reacts with potassium permanganate

A: Redox reaction takes place when oxalic acid reacts with potassium permanganate.

Q: Similarities I and M? I and C? M and C? Differences I and M? I and C? M and C?

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Q: Question 3 Determine if each reaction is a redox reaction or not a redox reaction. Reaction A: 2Cr…

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Q: CH3COOH + NaCH3COO 35mL total solution 0.86M concentration of acetic acid 0.14M Concetration of…

A: Given: Total volume of the solution = 35 mL Concentration of acetic acid = 0.86 M Concentration of…

Q: The formation of glucose from water and carbon dioxide is an extremely important reaction for life…

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Q: 6. Sugars can be linear or cyclic molecules, and normally have many chiral centres. How many chiral…

A: Chiral Center:  A carbon atom which have four different types of valancy on it , called chiral…

Q: XX Br₂ H₂O Br₂ H₂ Pt 1) 03 2) S

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Q: Assume you dissolve 0.235 g of the weak acid benzoic acid, C6H5CO2H, in enough water to make 4.00 ✕…

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Q: At STP, what is the volume of 4.50 moles of nitrogen gas? 101 L O 34201 167 L 0607 L

A: Ant gas at STP condition ( standard temperature and pressure) has 22.4 L volume  At STP condition…

Q: Determine the equilibrium constant for the following reaction: Ni(OH)2(s) + 2H3BO3(aq) → Ni2+ +…

A: Concept based on equilibrium constant for the sum of two or more chemical reactions. The equilibrium…

Q: How many milliliters of 0.200 M NaOH will be required to titrate 6.4 mL of 0.479 M H2SO4? Do not…

A: Concept:  In an acid base reaction, the amount of base needed or acid needed for titration can be…

Q: Write a balanced chemical equation for the standard formation reaction of gaseous hydrogen chloride…

A: The balanced chemical equation for the standard formation reaction of gaseous hydrogen chloride…

Q: I 200 I 0 120 100 PPM | || ||| IV

A: P

Q: Find the pH of dissolving 5g of LiOH in water to give 300 mL of solution

A: 5 g of LiOH is dissolved in water to give 300 mL of solution .We have to calculate the pH of the…

Q: 2- Show (or draw) the IR spectrum, The NMR Spectrum and the Mass spectrum for Methyl ethyl ester.

A: Methyl ethyl ester is also known as ethyl acetate or ethyl ethanoate.  The structure is as follows:…

Q: A chemist adds 2.00 L of a 5.9 × 10M mercury(II) iodide (HgI₂) solution to a reaction flask.…

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Q: will #4 not be adressed?

A: The three sub parts of question 4 are addressed below

Q: NaOH + H2O --> Na+ + OH- 50mL of H2O 2mL of 1M NaOH Calculate the expected pH of this solution

A: pH = It is the measurement of H+ ion concentration of a solution  pH = -log[H+] Similarly, pOH =…

Q: Using standard heats of formation, calculate the standard enthalpy change for the following…

A: The standard enthalpy change for the reaction is calculated as:…

Q: A sample of solid silicon is heated with an electrical coil. If 133 Joules of energy are added to a…

A: We have to solve the given problems. Formula: q = mC(Tf-Ti) Where, q is the thermal energy, m is the…

Q: CH₂CH₂BrH₂C=CHC(Br) CH 3 H₂C=CHBr CH3CH (Br) Q13

A: Sn1 reaction proceeds through a carbocation intermediate. So the alkyl halide which gives a stable…

Q: ded to titrate each of the following solutions to the equivalence point? (a) 25.7 mL of 0.209 M…

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Q: Consider the following equilibrium for which H = -209.7: 2 C2H6(g) + O2(g)  2 C2H4(g) + 2 H2O(g)…

A: Concept based on the chemical equilibrium of a reversible chemical reaction. Based of the change of…

Q: A 75.0 mL sample of 0.0200 M HBrO4 is titrated with 0.0400 M RbOH solution. Calculate the pH after…

A: Given -  Volume of HBrO4 = 75.0 mL Molarity of HBrO4 = 0.0200 M Molarity of RbOH = 0.0400 M

Q: What is the pHpH of a solution prepared by dissolving 4.20 gg Ca(OH)2Ca(OH)2 in water to make 795…

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Q: Complete the chart below. Some numbers may be used i Element Symbol Atomic Iron #7 Xe 10 :: Ne :: Fe…

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Q: Show that the standard heat of the following reaction is equal to -905 kJ/mol at 25 oC. 4 NH3(g) +…

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