How many moles of electrons are required for a denitrifying organism to reduce 186 moles of nitrate (NO,7 to dinitrogen gas (N-?

Q: What is the expression for Kc for the following reaction? PC13(g) + Cl2(g)=PC!5(g)

A: Equilibrium constant Kc is written for a general reaction as  A + B  ↔   C+ D    Kc= [C][D][A][B]

Q: Calculate  ΔG° for the following reaction at 25°C:   3Mg(s) + 2Al3+(aq) ⇌ 3Mg2+(aq) + 2Al(s)

A:

Q: if 9.8g water is used in electrolysis, what is the percent yield if 5.6g of oxygen was collected…

A:

Q: In the absence of oxygen (anaerobic conditions), methanotrophic bacteria produce methane (CH4) by…

A: Oxidation number: • Oxidation number of atoms in pure element or Atoms in free or uncombined…

Q: Determine the value of Kc for the following reaction at 100C:  2NO(g)+Br2 (g)  ⇌2 NOBr(g)

A: Kc is the equilibrium constant. it is calculated by using the formula given below,

Q: In a chemical reaction, inert compounds always have a stoichiometric ratio of: a. negative b.…

A: In a chemical reaction :  Inert compounds always have a stoichiometric ratio = ?

Q: What is the enthalpy of formation of CHg(g) in Reaction 4?

A:

Q: how many moles of each sunstance is present at the end of the reaction if 16 moles of sulfurdioxide…

A: 2SO2+O2→2SO3If 16moles of SO2, then finding the moles of  SO316mol of SO2×2 mol of SO3 2 mol of…

Q: 9. Find the coefficient for the balanced reaction for oxygen and the type of reaction N209--> 02+ N2

A: Given :-           N2O9   ---->   O2  +  N2 reaction is not balanced.

Q: 5) For the given reaction: он H,O + C- a. Which species is being oxidized and which species is being…

A: Removal of hydrogen is oxidation and addition of hydrogen is reduction

Q: Fe 0 () t 3 CO (9) 2 FC (5) r 300,0 Which woLA ld cause the reachion 10 hift t0 the eft: ) removing…

A: The question  is based on le-chatelier principle.   IT states that when a system at EQUILIBRIUM is…

Q: 5.79 Suggest ways (with appropriate equations) that wouldallow you to measure the ΔH°f values of…

A: The standard enthalpy of formation is the enthalpy change throughout the production of 1 mol of the…

Q: 1. You are studying the reaction N2(g) + 3H2(g) → 2NH3(g) What is AG° for this reaction? When the…

A: The reaction Gibbs free energy value can be explained as the type of the energy which is linked with…

Q: from the biodiesel reaction indicate where the compounds: biodiesel, h20, nacl, naoh, and ch3oh will…

A: The functional group is a key component associated with a molecule that gives the characteristic…

Q: 6. What is a zeolite? How does it differ from a catalyst support?

A:

Q: 11. A strip of magnesium weighing o.200 g is added to 3.00 mL of 5.00 M hydrochloric acid. During…

A: The chemical equation for the reaction between Mg and HCl is shown below. This reaction is an…

Q: 2.00g of aluminum solid is added to a 100.0 mL of 2.5 M aqueous solution of hydrobromic acid.…

A:

Q: 7. What is the balanced equation when FeCl3 (aq) is mixed with Ba(OH)2 (aq)? Show the correct state…

A: 7. Thr balanced equation for the reaction of aqueous FeCl3 and Ba(OH)2 is given below: 2FeCl3 (aq)…

Q: 2. An order for 1.5 gallons of 0.025% w/v solution of benzethonium chloride is received in the…

A:

Q: The mass of aluminum foil is 0.441g. The foil is dissolved in a 3.00 M KOH solution. How many moles…

A: How many moles of aluminum react and how many moles of KOH is necessary to react with the aluminum…

Q: What is the oxidation number of sulfur (S) in sulfuric acid (H2SO4)? -6 +2 +4 +6

A: Oxidation number of an element represents the charge on acquired by an atom in its bonded state.

Q: What is the oxidation number of phosphorous in PO3?-?

A: The oxidation number of phosphorous in PO32- can be determined as follows:  The oxidation number of…

Q: In the following reaction, 0. 052 moles of potassium would require how many moles of bromine? 2 K(s)…

A:

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

A:

Q: Suppose Cao is placed in a vacuum in which the partial pressure of oxygen is 10^-5mm Hg. Will Cao be…

A: At 10-5 mbar oxygen pressure,  CaO surface starts degrading at such conditions. We relate the…

Q: Assuming an efficiency of 36.40% calculate the actual yield of magnesium nitrate formed from 122.6g…

A: The given reaction is,                            Mg + Cu(NO3)2 ⟶ Mg(NO3)2 + Cu Clearly, from the…

Q: Determine the percent yield for the reaction between 3.2g of Na and excess O2 if 4.1g of Na2O is…

A:

Q: Determine AG° for the following reactions.

A:

Q: Will the following reaction occur as written? HO, `NH H2N cat. H2SO4

A: Amides are inactive towards nucleophilic attack as electrophilicity is very low at carbonyl carbon…

Q: If nickel(II) sulfate is heated too strongly, the following reaction will occur NISO4(s) NiO(s) +…

A: Given that nickel(II) sulfate heptahydrate forms nickel oxide and sulfur trioxide along with…

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: 5. Which answer represents the correct balancing coefficients (in order from right) & the type of…

A:

Q: How many coulombs are released when H2O is oxidized to liberate 1.00 mol O2 in the reaction 2H2O S…

A: The given reaction is: 2H2O → O2 + 4H+ + 4e-

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: Most commercial samples of K MnO contain some manganese dioxide that must be femoved prie Submit…

A: Oxidation is said to be loss of electrons and reduction is gain of electrons. Oxidizing agent…

Q: A cork popper. To entertain children between the ages of 2 and 90, Daniel Harris enjoys popping…

A: Given: Formula mass of acetic acid = 60 g/mol Formula mass of sodium bicarbonate = 84 g/mol

Q: Estimate the temperature that would make it possible to reduce sulfuric acid from 30% to 5%.

A: Given,  Temperature (T1) = 200 °C = 200 + 273 = 473 K Initial volume of sulfuric acid (V1) = 30 mL…

Q: omplete the reaction map below by matching A-E with the given choices. HBr H, A Lindlar's B HO…

A:

Q: Kw at (0 degrees kelvin) is .02. What is the concentration of H3O+ ?

A: Given, Kw = 0.02. Concentration of H3O+ has to be calculated.

Q: 0.010 mol of barium is added to 500 cm of water The equation is shown below. Bats) +…

A:

Q: Under certain nonstandard conditions, oxidation by O2( g) of1 mol of SO2( g) to SO3( g) absorbs 89.5…

A: Given, The balanced chemical equation is given below, The enthalpy formation = -204.2 kJ One mole…

Q: 10. Careful decomposition of ammonium nitrate gives laughing gas, (N2O) and water. Balance the…

A: A balanced chemical equation states that the number of elements in the reactant side is equal to the…

Q: Calculate the ∆G for the reaction at 25° C 2SO2(g) + O2(g) → 2SO3(g)

A: Thermodynamics is the branch of chemistry that mainly deals with the heat transfer between system…

Q: Balance the reaction between Fe2+ and SO42- to form Fe3+ and SO2 in acidic solution. When you have…

A: The unbalanced equation is  Fe+2 + SO4–2 ----------> Fe+3 + SO2 In this reaction, the oxidation…

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.