What is the enthalpy change for the production of 1.00 mol SnO? Sn + SnO2 + 92 kJ->2SnO a. -184 kJ b. -92 kJ c. -46 kJ d. 46 kJ e. 92 kJ

Q: The reactions occurring at (i) anode, (ii) cathode, during working of a mercury cell. Why does the…

A: A voltaic cell is an example of electrochemical cell. It uses a chemical reaction to produce…

Q: An electrolysis cell for aluminum production operates at 5.0 V and a current of 8.5 x 10° A.…

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Q: The standard enthalpy change for the following reaction is 804 kJ at 298 K. TiCl4(l) Ti(s) + 2…

A: The "enthalpy change" always reflects the heat energy which gets out (absorbed) or gets absorbed…

Q: The reaction between hydrazine (N,H) and dinitrogen tetroxide (N,O4) in their liquid forms is used…

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Q: For the reduction of silver with hydrogen:             2Ag+(aq) + H2(g)      2H+(aq) + 2Ag(s)…

A: Enthalpy change of formation and entropy of each reactant and product is given.  We need to…

Q: How does lime reduce sulfur dioxide emissions from the burning of coal?

A: Coal is primarily made up of carbon and it  is readily combustible. The colour of coal is…

Q: Electrochemistry: Calculate:      a. Electrical Energy      b. AG°      c. K od the reaction.

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Q: About 50,000 kJ of electrical energy is required to produce 1.0 kg of Al from its Al(OH)3 ore. The…

A: Calculate the number of moles of aluminum Given mass of aluminum = 1000 g Molar mass of aluminum =…

Q: reakly attracted, wb gh value? (b) boiling point (d) surface tension

A: If two molecules in the liquid have weakest Intermolecular forces ( like London dispersion…

Q: Jse the standard reduction potentials located in the 'Tables' linked above to calculate the standard…

A: Solution- Fe2+(aq) + Cu(s) → Fe(s) + Cu2+(aq)E0cell=EoCu /Cu2+  + EoFe2+ / Fe=-0.34n +…

Q: An electrolysis cell for aluminum production operates at 5.5 V and a current of 7.0 x 10° A.…

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Q: Consider the following redox reaction with nitrogen (N): NO3 + H* + 8e +→ _NH4* a. Balance this…

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Q: Using the tables in your textbook calculate AG° for the following reaction at 109.3 °C in kJ. 2Na(s)…

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Q: Calculate the standard free-energy changes of the following reactions at 25°C. 1. Evaporation of…

A: Write the reaction. H2O(l)⟶H2O(g) The standard free energy change of a reaction can be obtained by…

Q: Calculate AH and AS for the following reaction. Then use the AH and AS to calculate AG for the…

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Q: Calculate the amount of heat absorbed when 63.5 g of NO is produced. N2g) + O2(g) → 2NO2)…

A: Mass of NO = 63.5 g  ∆Hrxn = 180.5 KJ/mol. The amount of heat absorbed when 63.5 g NO is produced =…

Q: In the production of aluminum metal, Al³+ is reduced to Al metal using currents of about 50,000 A…

A: Given ,            I =50000 A            V =4 V             w =2000 metric tons i.e 2 ×109 g we know…

Q: All of the following have the free energy of formation value zero except: a) Fe(s)      b)   N2(g)…

A: All Have Zero free energy of formation except

Q: Explain a brief description of electrochemistry and give information about its importance.

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Q: Aluminum is produced commercially by the electrolysis of Al2O3 in the presence of a molten salt. If…

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Q: It is thermodynamically favorable for methane to autoigniteand burn at room temperature, but this…

A: The relation between free energy and enthalpy  is shown below: ∆G =∆H-T∆S where; ∆H= change in…

Q: Which of the following substances will conduct electricity in both of its molten and solid states?…

A: As we know,  electricity is conducts due to free electrons and free ions   Sn is the element which…

Q: Given: Fe+2  +  2e- ?  Fe E red o = - 0.44 V Ag+  +  e-  ?  Ag E red o =  0.80 V Fe+2 (aq)  +…

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Q: A disproportionation reaction involves a substance that acts as both an oxidizing and reducing…

A: The disproportionation reaction is – The reaction taking place at the cathode – The reaction…

Q: Given the thermodynamic data below, calculate the value of the equilibrium constant for the reaction…

A: Given data, ∆H° = 180.50 KJ = 180500 J ∆S° = 24.77 J/K Temperature (T) = 25°C = (273+25) = 298 K

Q: 20. Use the data given below to find the equilibrium constant for the following reaction at 46 °C:…

A: Data given,  The equilibrium reaction given is,  Br2 (l) + 2 I– (aq) ⇌ 2 Br– (aq) + I2 (s)  The…

Q: Boron nitride (BN) has a structure similar to graphite, but is a white insulator rather than a black…

A: a) The balanced reaction for the formation of BN is: B2O3(s)+2NH3(g)→2BN(s)+3H2O(l) b) Calculation…

Q: How many grams of silver metal are produced from Ag*(aq) in 4.05 h with a current of 3.50 A? (F =…

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Q: An electrolysis cell for aluminum production operates at 4.0 V and a current of 8.5 x 10° A.…

A: The solution is given below -

Q: The Ostwald process for the commercial production of nitric acid fromammonia and oxygen involvesthe…

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Q: Consider the reaction between ozone, O3(g) & an unknown metal:   O3(g) + X(s) → XO (s) + O2(g) at…

A: Given reaction: O3(g) + X(s) → XO (s) + O2(g)

Q: Describe the properties of supercritical carbon dioxide.  What are the advantages of using…

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Q: Calculate Δ G for the following reaction at 25 ° C:   Pb(s) + Ni2+(aq) ⇌ Pb2+(aq) + Ni(s)

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Q: The zinc inside the penny reacts with acetic acid (CH3COOH).  The products are zinc acetate and…

A: We have to predict the balance chemical reaction.

Q: Calculate Eo for the reaction: Chromium(II) ions and tin(IV) ions to produce chromium(III) ions and…

A: The net equation for the given reaction is as follows: 2Cr+2 (aq)+Sn+4(aq)→2Cr+3(aq)+Sn+2(aq)

Q: Use the Standard Thermodynamic Properties table to calculate AH° for the following reaction: Fe2O3…

A: The enthalpy of formation is the amount of energy required to form 1 mole of substance from its…

Q: The standard enthalpy change for the following reaction is 940 kJ at 298 K. TiO,(s) Ti(s) +02(g) AH°…

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Q: 0.115 V, what is the value of the standard free energy (in kJ) for this reaction?

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Q: In the production of aluminum metal, Al³+ is reduced to Al metal using currents of about 50,000 A…

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Q: An electrolysis cell for aluminum production operates at 4.5 V and a current of 7.5 x 10° A.…

A:

Q: The standard enthalpy change for the following reaction is 804 kJ at 298 K. TiCl4(l) Ti(s) + 2…

A: Since as per the Hess's law, the enthalpy change of any process changes its sign if the reaction…

Q: What volume of Oxygen at STP can be produced by the electrolysis of 20.0 g water?…

A: Balanced chemical equation for electrolysis of water is given by 2 H2O (l) → 2 H2 (g) + O2 (g) Mass…

Q: An electrolysis cell for aluminum production operates at 4.0 V and a current of 4.0 × 10° A.…

A: Solution-

Q: Magnesium metal (a component of alloys used in aircraft and a reducir used in the production of…

A: Density of seawater = 1.026 g/cm3