A fuel cell car is powered by electrons harvested from the flameless, low-temperature reaction 2 H2 + O2 → 2 H2O How many liters of oxygen is needed to react with 42.0 L of hydrogen at STP

Q: Calculate the g aluminum required to generate 913 mL of hydrogen gas at STP.

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Q: 4. Which of the following pairs of aqueous solutions would not produce a reaction when mixed? a)…

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Q: The purity of a sample containing zinc and weighing 0.312 g is determined by measuring the amount of…

A: Given mass of sample of Zn = 0.312 g  Mass %age of Zn in the sample = 84.0%  Find amount of H2 gas…

Q: 1.5 The human body consumes an average of 450 grams of glucose per day. To fully oxidize this amount…

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Q: How many millimoles (1000 mmoles = 1 mole) of hydrogen gas can be generated when 0.0350 grams of…

A: Magnesium reacts with hydrogen chloride to form hydrogen gas and magnesium chloride. The equation…

Q: Aircraft de-icing agents, such as propylene glycol [1,2-propanediol; CH₃CH(OH)CH₂OH; d=1.036 g/mL],…

A: CH3CH (OH) CH2OH has 2 adjacent Hydroxyl groups attached having a molar mass of 76.09 gm.

Q: Determine the volume of O 2 (at STP) formed when 70.0 g of Fe2O3 decomposes according to the…

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Q: How many liters of CO2 are produced when 3.46 Fe2O3 is converted to cast Fe at STP?

A: The ideal gas equation is given by, PV=nRT where P is the pressure, V is the volume, n is the number…

Q: Discuss the environmental significance of dissolved oxygen.

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Q: Calculate the voluune of NH, (g) at STP that procuced by react 5.7 g H,0 as the following equation:…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Hydrogen gas is generated by reacting lithium metal with excess HCI. How many grams of lithium metal…

A: The balanced reaction taking place is given as, => 2 Li (s) + 2 HCl (aq) -----> H2 (g) + 2…

Q: How much co2(in L) will be produced by 250g of caco3 if it is completely reacted with hcl at 25C at…

A: Balanced chemical equation   CaCO3 + 2HCL → CaCl2 + CO2 + H2O

Q: 1. The surface atoms of aluminum metal corrode in air to form an impervious aluminum oxide coating…

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Q: What is the volume of 0.25mol of CO2 gas at STP

A: Moles of CO2 gas = 0.25 mol Volume at STP = ? STP is standard temperature and pressure.  Standard…

Q: A student determined the identity of an unknown metal he found in the lab by performing the ideal…

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Q: Consider the reaction between aqueous sodium bicarbonate and aqueous nitric acid. Write the balanced…

A: Since you have posted multiple questions, we will solve the first question for you. To get remaining…

Q: How many grams of lead (II) nitrate are required to make 648 mL of a 5.25% (w/v) solution? SHOW WORK…

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Q: What mass of CaCO3 would be needed to produce 25.0 L of CO2 at STP?

A: a)  Given :-  CaCO3(s) → CaO(s) + CO2(g)  volume of CO2 at STP = 25.0 L To calculate :-  amount of…

Q: For calculations of gas volume given the reaction takes place at STP why do I have to use Moles=…

A: Ideal Gas Law :-  PV = nRT  P is the pressure of gas  V is the volume occupied by gas n is the…

Q: How many liters of Cl2(g) at STP can be made from NaCl by oxidation with 24.0 grams of K2Cr2O7 in an…

A: Given,Grams of K2Cr2O7 = 24.0 gMoles of K2Cr2O7 can be calculated as:

Q: How much CO2(in L) will be produced by 250g of CaCO3 if it is completely reacted with HCl at 25oC…

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Q: 2. A cylinder with a moveable piston contains 1.12 mol of neon gas, and has a volume of 514 ml. What…

A: At constant temperature and pressure the volume of the given gas is directly proportional to the…

Q: What type of gas is formed from the following chemical reaction? FeCO3 (aq)   +   HCl (aq)   →

A: Balanced reaction means number of atom in reactant side is equal go number of atom in product side.…

Q: 43. 5.75 g of Fe3O4 is formed in the reaction 4 H₂O(g) +3 Fe(s)→ FesO4(s) + 4 H₂(g) How many liters…

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Q: calculate the mass of CO2 that occupies 78.0mL at STP

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Q: What is the mass of a 5.6 liter (STP) sample of CO2 gas?

A: Given data, CO2 gas = 5.6 L 1 mole of CO2 occupies = 22.4 lit at S.T.P

Q: Suppose you want to produce 2.00 L of COz at STP using the reaction in #1. What mass of sodium…

A: Given data,Volume of CO2=2.0LGiven reaction,2NaHCO3→Na2CO3+CO2+H2O

Q: One method of removing CO2(g) from a spacecraft is to allow the CO2 to react with LiOH.…

A: We make use of the above equation and also the given data to find the volume of CO2 required.…

Q: 11. What volume of hydrogen gas at STP may be prepared by the reaction of 4.54 g of gallium with…

A: Given, Ga(s) + HCl(aq) ➝ GaCl3 + H2 Mass of Ga reacts = 4.54 g Molarity of HCl solution = 1.75 M =…

Q: Which statement describes a chemical property of hydrogen gas 1. Hydrogen gas burns in air. 2.…

A: Hydrogen is the most abundant element in the universe, it is found in the sun and the stars.It is a…

Q: Given the chemical reaction 4 Fe + 3 O₂ + 6 H₂O → 2 Fe₂O₃.3 H₂O which is reduced?

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Q: 8. 2.02 g of Aluminum metal reacts with 1.71 L of chlorine gas at 300. K and 1.20 atm to produce…

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Q: What evidence of incomplete combustion would each of the following devices show? (a) Automobile…

A: Combustion is simply defined as the burning of a substance generally organic in presence of oxygen…

Q: Answer these questions based on this reaction and the following information Mn(s) + 2 HCl(aq) ®…

A: The balanced reaction taking place is given as, => Mn (s) + 2 HCl (aq) → MnCl2 (aq) + H2 (g)…

Q: Consider the reaction below: 2KClO3(s) -2KCl(s) + 30₂(g) Given Molarmass: KClO3 (122.6 g/mol); KCl…

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Q: Using the same balanced equation as question #5, how many Liters of O2 (at STP) are required to…

A: From a balanced equation we can calculate the reactant required .

Q: How many grams of sodium hydrogen carbonate decompose to give 18.8 mL of carbon dioxide gas at STP?…

A: AT STP,V = 18.8 m L = 18.8/1000 = 0.0188 LT = 273.15 KP = 1 atm R = 0.082057 L atm mol-1K-1 n =__…

Q: 9. How many liters of oxygen are required to react completely with 2.4 liters of hydrogen to form…

A: Given in the question, Volume of H2 = 2.4 L The complete balanced equation : 2H2 + O2 →2H2O As we…

Q: What mass of sodium bicarbonate should you use?

A: number of moles = mass/molar mass  mass = moles × molar mass    at STP ;  1 mol gas = 22.4 L

Q: How many liters of oxygen gas at STP are required to react with48.5 g of aluminum in the production…

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Q: What volume of CO2 measured at STP is produced when 23.5 g of CaCO3 is decomposed? CACO3 (s) →…

A: The mole is an amount unit similar to familiar units like pair, dozen, gross, etc. It provides a…

Q: Write the chemical equation that describes the dissolution of alum in water and describe how many…

A: Alum is the colorless salt of aluminum which is used in the purification of drinking water, in waste…

Q: 20. In a railroad yard, a 2.5 X 104-kg boxcar moving at 8.5 m/s is stopped by a spring-loaded bumper…

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Q: Determine volume of O 2 (at STP) formed when 70.0 g of Fe2O3 decomposes according to the following…

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Q: A student determined the identity of an unknown metal he found in the lab by performing the ideal…

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Q: What volume of oxygen at STP is required for the complete combustion of 55.0 g of butane, C4H10? 2…

A: Given, mass of butane = 55.0 g

Q: How many liters of hydrogen gas would be produced by the reaction o 47.2 g of Al with excess HCl at…

A: The given balanced chemical reaction is as follows: As per the information  mass of aluminium is…

Q: Write a balanced equation for each of the followingreactions: (a) Burning magnesium metal in a…

A: To write the balanced equation for each of the below chemical reactions. (a) Burning magnesium metal…

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.