How many moles of O2 gas are produced at 1 atm pressure and 25 °C by the electrolysis of an aqueous solution of Na2SO4 if 0.400 A is passed through the solution for 80.0 minutes? Here is the oxygen reduction reaction. O2(g) + 4 H+ (aq) + 4 e 2 H₂O(l) Report your answer in moles to three significant figures. Do NOT use scientific. notation. Do NOT put units in the answer box. Me

How many moles of O2 gas are produced at 1 atm pressure and 25 °C by the electrolysis of an aqueous solution of Na2SO4 if 0.400 A is passed through the solution for 80.0 minutes? Here is the oxygen reduction reaction. O2(g) + 4 H+ (aq) + 4 e 2 H₂O(l) Report your answer in moles to three significant figures. Do NOT use scientific. notation. Do NOT put units in the answer box. Me

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter17: Electrochemistry

Section: Chapter Questions

Problem 96E

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The carbon dioxide exhaled in the breath of astronauts is often removed from the spacecraft by reaction with lithium hydroxide 2LiOH(s)+CO2(g)Li2CO3(s)+H2O(l) Estimate the grams of lithium hydroxide required per astronaut per day. Assume that each astronaut requires 2.50 103 kcal of energy per day. Further assume that this energy can be equated to the heat of combustion of a quantity of glucose, C6H12O6, to CO2(g) and H2O(l). From the amount of glucose required to give 2.50 103 kcal of heat, calculate the amount of CO2 produced and hence the amount of LiOH required. The H for glucose(s) is 1273 kJ/mol.
Use the appropriate tables to calculate H for (a) the reaction between copper(II) oxide and carbon monoxide to give copper metal and carbon dioxide. (b) the decomposition of one mole of methyl alcohol (CH3OH) to methane and oxygen gases.
The equation for the oxidation of phosphorus in air is P4(s) + 5 O2(g) P4O10(s). Identify the reactants and products and the stoichiometric coefficients. To what do the designations s and g refer?
What is Hrxn for reaction of iron(III) oxide and carbon monoxide to give iron metal and carbon dioxide gas? Use the following reactions: 4Fe(s)+3O2(g)2Fe2O3(s)H=1648.4kJ4CO(g)+O2(g)2CO3(g)H=565.98kJ
In the late eighteenth century Priestley prepared ammonia by reacting HNO3(g) with hydrogen gas. The thermodynamic equation for the reaction is HNO3(g)+4H2(g)NH3(g)+3H2O(g)H=637kJ (a) Calculate H when one mole of hydrogen gas reacts. (b) What is H when 10.00 g of NH3(g) are made to react with an excess of steam to form HN3(g) and H2 gases?
Using the equation 2Mn(OH)2(s)+O2(aq)->2MnO(OH)2(s), Determine the number of moles of MnO(OH)2 Formed for every one mole of O2 consumed. Show work.
When heated, calcium carbonate decomposes to yield calcium oxide and carbon dioxide gas via the reaction CaCO3(s)→CaO(s) + CO₂(g) What is the mass of calcium carbonate needed to produce 35.0 L of carbon dioxide at STP? Express your answer with the appropriate units. View Available Hint(s) mass of CaCO3 Submit = Part B 0 370.8 HÅ atm Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining ? Butane, C4H10, is a component of natural gas that is used as fuel for cigarette lighters. The balanced equation of the complete combustion of butane is 2C4H10 (9) + 1302 (g)→8CO2 (g) + 10H₂O (1) At 1.00 atm and 23 °C, what is the volume of carbon dioxide formed by the combustion of 2.20 g of butane? Express your answer with the appropriate units.
As part of the aspirin synthesis lab the orgo students also had to perform the following calculation to demonstrate their knowledge. Are you able to help them work this out? Saponification is a process in which soap is produced from the chemical reaction between animal fat (triglycerides) and a strong base such as KOH. An example of such balanced chemical reaction is shown here: C51H98O6 + 3KOH → C3H5(OH)3 + 3C16H31O2K (Triglyceride) (Soap) if during the saponification reaction 231.5 g of C51H98O6 is mixed with 231.5 g of KOH and 160 g of soap is produced. Calculate the theoretical yield of soap C16H31O2K and indicate who is the limiting reactant. (Provide your answer to 2 decimal places) Calculate the percent yield for this reaction (Provide your answer to 1 decimal place) *Show ALL steps and mathematical equations involved in your calculations to help the orgo students. Remember to label all…
Phosphoric which is commonly used as rust inhibitor, food additive and etching agent for dental and orthopedic use, can be synthesized using a two-step thermal In the first step, phosphorus and oxygen react to form diphosphorus pentoxide: P{(1)+5O,(g)→2P,05(9) In the second step, diphosphorus pentoxide and water react to form phosphoric acid: PO;(g)+3 H,0(1)–-2H;PO,() Write the net chemical equation for the production of phosphoric acid from phosphorus, oxygen and water. Be sure your equation is balanced. Explanation Check O 2022 McGraw Hill LLC All Rights Reserved. Terms of Use Privecy Center ACcessibility 5:55 PM DELL F8 F11 F12 PrtScr Insert Delete %2$ Backspace Lock レ Enter H %23 ス Il +
Life support systems of spaceships and submarines are designed assuming that averageconsumption of oxygen for 1 person is 1 kg per day. To obtain oxygen, reaction of sodiumperoxide with carbon dioxide exhaled by people is used (RbO2 + CO2 =>). Calculate the mass of sodium peroxide which must be taken on an expedition to provide oxygen to a crew of 4 people for a week.

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