Why is it necessary to use the standard hydrogen half-cell as a reference when calculating standard cell potentials?

Q: A particular first-order reaction has a rate constant of 7.35 x 104 s-1 at 25.0 °C. What is the…

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Q: Apollo 13 Lunar Mission You are a NASA engineer. You are the chief engineer for the Apollo 13…

A: Given data; 6.7×1025 particles of NaOH are present There are three astronauts and each will emit 500…

Q: er, answer the following question. 128 grams of KBr, and combine it, in a , with water at a…

A: From the graph , At 60 °c,  The solubility of KBr is 86 g KBr/100 g water

Q: pH Practice Problems You may want to use Google Calculator so that you can enteriread longer numbers…

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Q: complete the ff. reaction

A: To complete the following reaction of benzaldehyde.,

Q: Calculate the volume of liquid in the NMR tube sketched below. Give your answer in microliters, and…

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Q: What is the experimental molar mass (that is, calculated from the data given and not taken from the…

A: First we would write balanced chemical equation for formation of Hydrogen gas from Magnesium . Then…

Q: Quercetin, a flavonoid found in fruit juice, was quantified by UV-Vis using external calibration.…

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Q: A chemistry student needs 10.0 g of acetic acid for an experiment. She has avallable 1.0 kg of a…

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Q: 4. What would be the limiting reactant if 9 g of water reacted with sodium to form 0.4g H2?

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Q: Consider the reaction 2Na + 2H2O → 2NAOH +H2 If 10g Na reacted with 0.8 g H20, what would be the…

A: 3

Q: Draw a diastereomer for each of the following compounds: Part A CH3 H 2OH Br H CH3

A: Answer is given below

Q: For the reaction below predict what happened to the temperature for the equilibriums to shift in the…

A: Given -> PCl5(g) + heat <----> PCl3(g) + Cl2(g)

Q: You perform a titration on 9.50 mL of an HCl solution of unknown concentration. It requires 93.54 mL…

A: Balanced chemical equation for the reaction 8s as follows: HCl + NaOH -------> NaCl + H2O All the…

Q: Calculate the hydroxide ion concentration, [OH−], for a solution with a pH of 10.49. Calculate the…

A: pH is equal to the negative logarithm of hydrogen ions

Q: N2 + 3H2 2 NH3 The Forward reaction is : The Reverse reaction is: At equilibrium the change in…

A: For the given reaction., N2 + 3H2 <==> 2NH3

Q: 2. What would be the limiting reactant of sodium reacted with 10 mol of chlorine to form 10 mol of…

A: Sodium reacts with chlorine to form sodium chloride. The equation for the balanced chemical reaction…

Q: What is the IUPAC name of the structure?

A: Esters nomenclature:  Esters named as alkyl chain from the alcohol is a substituent , parent…

Q: If 25.0 mL of 0.1000 M HCl is titrated with NaOH with an initial volume of 3.02 mL and final volume…

A: Given: Volume of HCl = 25.0 mL Concentration of HCl =  0.1000 M Initial volume of NaOH =3.02 mL…

Q: What is [H3O+] and the pH of a solution of H2CO3 with [H2CO3]Total = 4.5 x 10-4 M? (Use the pKa…

A: 4.) To calculate [H3O+] , we would write dissociation equation of H2CO3 and use pKa of first…

Q: 1. The density of air is given as 0.00118 g/mL, and the total volume of air is found to be 105.89…

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Q: What is the Normality of 250ml of 2.417M AL(OH), diluted to 500ml? 14.50N 3.63N 1.21N 4.83N

A: Given,  Volume of Al(OH)3 in mL = 250 mL  Molarity of Al(OH)3 = 2.417 M  Al(OH)3 diluted to volume =…

Q: What tool is used to measure the amount of titrant added in a titration?

A: A manual titration apparatus. The upper piece of glassware is called a burette, and is filled with…

Q: Calculate the concentration of H+ in a solution of pH = 1.25.

A: pH of the solution = 1.25  Concentration of H+ = ?

Q: stion 16 atient is given a 0.05 mg dose of " p 6hours, How long will it be until only 6.3 x10 mg the…

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Q: Explain the substituent effect on acidic and basic properties

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Q: 19 A sample of gas has a volume of 838.7 ml and a pressure of 366.5 torr. What volume (in mL) will…

A: Given: Initial volume of gas = 838.7 mL Initial pressure of gas = 366.5 torr Final pressure of gas =…

Q: Consider a fuel cell that uses the reaction of ethanol with oxygen to produce electricity. CH,…

A: Given reaction is :  CH3CH2OH (l) + 3O2 (g) -----------> 2CO2 (g) + 3H2O (l) Calculate standard…

Q: C5H11NO that contains a 2° amide. d

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Q: Write equations for the hydrogenation of 3,4-dimethylhexanal and 2- chloropentanal.

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Q: A 60.0 g sample of water (CW) at 8.0°C is mixed with 80.0 g water (HW) at 58.0°C in a coffee cup…

A: Given that -  Mass of sample of water (CW), M1  = 60.0 g  Mass of water (HW) , M2 = 80.0 g…

Q: Isooctane, CgH18), is one of the main constituents of gasoline. Calculate the mass of carbon dioxide…

A: Given,  How much amount of carbon dioxide gas produced by the complete combustion of 692 g of…

Q: What is the de Broglie wavelength of a 2.89 x 10-28 kg particle moving at 3.00 x 108 m/s? (h = 6.626…

A: Given, mass of the particle (m) = 2.89 × 10-28 kg Speed of the particle (v) = 3.0 × 108 m/s Planck…

Q: Explain why and agricultural drainage would contain high concentrations of phosphate  ions.

A: Introduction: Agriculture drainage is a necessary system, which helps to remove excess irrigation or…

Q: Balance the following electrochemical reaction in acid: MnO 4 (aq) + Zr( s) → Mn –"( aq) + Zr + Zr…

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Q: Question 2 The complex (Cu(NH,,"absorbs hight with a wareleng th af 342 nm.What is the value of A in…

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Q: Calculate the standard potential for the half-reaction: Al(C204)2 + 3e - Al(s) + 2C2042- if the…

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Q: Polyamides can be produced from O two monomers, one containing two amino groups, the other…

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Q: If a rock sample was found to contain 4.30 x 10-7 mol of argon-40, how much potassium-40 would also…

A: Nuclear disintegration follows first order kinetics  λ=2.303 log(A0/A)/t  λ=0.693/t1/2 or 0.693/t1/2…

Q: What is the Ecell for the cell represented by the combination of the following half-reactions? 2H92…

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Q: What is the dominant intermolecular force present in diamond ? Hydrogen bond London dispersion…

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Q: For each of the following salts listed below predict whether it is an acidic, basic, or neutral…

A: for each of the salts predict weather it is acidic basic or neutral salt. write the net ionic…

Q: Calculate the equilibrium constant, K, for the reaction shown at 25 °C. Fe+(aq)+B(s) + 6 H, O(1) →…

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Q: The following figure is an example of band theory. D is known as a %23 B. 4L

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Q: I have a 1.018 M solution of nitrous acid, along with a 1.018 M solution of nitric acid. The H,0"…

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Q: Compared to their neutral atom counterparts, ions will have smaller or larger atomic radii due to…

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Q: Which statement describes the action of a buffer composed of acetic acid (CH3COOH) and sodium…

A: Hi! Thank you for the question As per the honor code, We’ll answer the first question since the…

Q: Sn(s) + H2(g) --> SnH2(s) a- what is the name of the element getting oxidized? b- what is the name…

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Q: QUESTION 1 Provide reagents for this transformation of starting compound. More than one step is…

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Q: An organic chemist reacted 10g CH4 with an excess of Cl2 and obtained 10g CH3CI. a. What should have…

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Electrolysis

Electrolysis is defined as the process of breaking down ionic compounds into their constituent elements by passing a direct electric current through the compound in a fluid state. The cathode reduces cations, while the anode oxidizes anions. An electrolyte, electrodes, and some form of external power source are the main components required for conducting electrolysis. A partition, such as an ion-exchange membrane or a salt bridge, may also be used, but this is optional. These are primarily used to prevent the products from diffusing near the opposing electrode.