The value of delta S for the formation of POCI3 from its consitituent elements, P2(g) + O2 (g) + 3CI2 (g) -> 2POCI3(g) is ___J/K x mol

Q: 7. The hardness of water (hardness count) is usually expressed in parts per million (by mass) of…

A: Option (a) is the correct option. Answer is explained below. Ans: Molar concentration of Ca2+ ion in…

Q: If AH = +54.74 kJ for a chemical reaction, that reaction %3D is neutralization O is endothermic O is…

A: If ∆H= +54.74 KJ  Reaction ?

Q: According to the given reactions, which of the following is not exothermic? SO2(g) – S(s) + O2(g) AH…

A: The reactions given are, 1) SO2 (g) -----> S (s) + O2 (g)                      ΔH = +199 KJ/mol.…

Q: Mmes) 2+ 27 Calaulate AG° for the reactions.

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Q: M H,SO, M Na,CO, .025 M 0.5M KIO, (NH,),C,0, Acetic Acid Ba(NO,), P. P NP Ca(NO,), NP Mg(NO,), NP NP…

A: In general, the solubility of nitrates of alkaline earth elements is decreasing on move down to the…

Q: Two bromine atoms combine to form a bromine molecule (2Br (g)àBr2 (g)) 2) An electron is removed…

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Q: A4 Each alkali metal reacts with water to give hydrogen gas and an hydroxide (a base). eg: lithium +…

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Q: Imagine that you have 4 buckets full of dark, muddy water. One bucket is frozen, one bucket is…

A: The bucket which is most likely to become lighter in color is

Q: Consider the following reaction: 2AB(g) A2(g) + B2(g) 4.25 moles of AB are placed in a 1.00 L flask…

A: Given equilibrium reaction is: 2AB(g)  ⇌  A2(g)+B2(g) Initial amount of AB is 4.25mol. in 1.00L…

Q: In the reaction Conc.H,SO, OH → P (Major) Pis

A: In reactions, rearrangement takes place to form more stable cation or to expand the ring.

Q: Substance O2(g) PC1(e) POC13(g) AH (KJ/mol) S (J/mol.K) 205.5 273.1 325.5 0 -319.7 -558.5 25 =:…

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Q: calculate the reaction energy of the following reactions and then determine if they are endothermic…

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Q: 4NH3(g) + 302(g) → 2N2(g) 6H20(g) с. Shift (PNH3) (Роз) (PN2) (Рнзо) K Addition of 02 Addition of N2…

A: Equilibrium constant depends on temperature and is independent of the actual quantities of reactants…

Q: 3. Chemicals in the air can combine with rain to produce acid rain, which is ha O A. 0 O B. 4 O C.…

A: In the given question  Answer is option (b)

Q: The buildup of oxides of carbon in the atmosphere by the burning of fossil fuels is a driver for…

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Q: 4. K;Cr20, + KI + H;PO4 5. K,Cr,O, + FeSO, + H,SO, I2 + CrPO, + KPO4 + H;0 Cr;(SO,); + Fe,(SO,); +…

A: A balanced chemical reaction is that in which the left-hand side contains an equal number of atoms…

Q: || НО-С K,Cr,O7 НОСН2 С-Н С--ОН

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Q: d. Al(s) + Fe"(ag)-> Al*(ag) + Fe"(ag) [Al] = 1.00 M, [Fe] = 0.0250 M, [Fe] = 0.0350 M e. Mno, '(ag)…

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Q: 2 FeO(s) + 1 /2 O2(g) -> Fe2O3(s) why isn't it a formation reaction?

A: Formation reaction : The chemical reactions in which one mole of a substance form from its…

Q: 2. The reaction of between hydrazine (N₂H₁) and dinitrogen tetroxide (N₂0₂) in their liquid form is…

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Q: The AH rxn for which of the following reactions would have the same value in kJ/mol as the electron…

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Q: The reactivity of the alkali metals are arranged in the increasing order of ________.  A. Fr, Cs,…

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

Q: Following the net ionic equation of the reaction: Na + Feso4 - NazsO4 + Fe How should its Keq be…

A: ->Na(s) + FeSO4(aq) ----> Na2SO4(aq) + Fe(s) ->when one specie get oxidized and other get…

Q: Given the following reaction, identify only those chemical species that are undergoing a chemical…

A: The change which is accompanied by a chemical reaction is known as chemical change. A chemical…

Q: a The Ostwald process for the commercial production of nitric acid from ammonia and oxygen involves…

A: Given: Ostwald process for the commercial production of nitric acid from ammonia and oxygen. The…

Q: This reaction is spontaneous at temperatures lower than: _____K

A: The standard thermodynamic data for the given reactants and products at given temperature is,

Q: Calculate AH° for the process ½ N2(g) + ½ O2(g)→ NO(g) from the following information AH° = -192.3…

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Q: Lithium oxide is an effective absorber of carbon dioxide and can be used to purify air in confined…

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Q: Lithium oxide is an effective absorber of carbon dioxide and can be used to purify air in confined…

A: Number of moles of Li2O = Given massMolar mass Here Given mass = 1000 g     1kg = 1000 gMolar mass…

Q: Which element is neither a transition element nor a representative element? Iron Manganese…

A: Hence 3rd option is correct that is mercury

Q: Which of the following processes yields a AS = - ? O2 NO(g) + O2(g) (11> 2 NO2(g) NaCIO3(s)---> Na…

A: If ∆ng for a reaction is + then ∆S for this reaction is also + If ∆ng for a reaction is - then ∆S…

Q: In ionic solids such as NaCl (salt), the potential energy of a pair of ions takes the form U = blrl"…

A: Given : a = 4.04 X 10-28  b = 5.52 X 10-98  n = 8.22  And the potential energy for NaCl is given by,…

Q: Write chemical equations for each of the following chemical and physical processes: - Combustion of…

A: (i) Combustion of CH3OH 2CH3OH(l) + 3O2 (g) --->2CO2 (g) + 4 H2O (l) (ii) Thermal decomposition…

Q: 4. K;Cr20, + KI + H;PO4 5. K,Cr,0, + FeSo, + H,SO, I2 + CrPO, + KPO4 + H;0 Cr,(SO.), + Fe;(SO,); +…

A: Loss of electron is oxidation and Gain of electron is reduction.  On other hand we can say that,…

Q: Complete and balance the following chemical equation: Ni (s) + H2SO4 (ap) -->

A: In electrochemical series, Ni is present above H. Hence, Ni can acts as reducing agent means Ni will…

Q: A 0.8780 g sample containing only NaCl and KCl was treated with AgNO3. The AgCl formed had a mass of…

A: Given that -  Mass of sample containing NaCl and KCl = 0.8780 g  Mass of AgCl = 1.913 g  Also atomic…

Q: In an ion-exchange process, which ion has a higher affinity for exchange: Potassium ions (K+) or…

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Q: What is K for 2 NO (g) + Cl, (g)= 2 NOCI (g)

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Q: Explain how measuring carbon isotope (12C, 13C,14C) abundance in atmospheric CO2 provides evidence…

A: Carbon occurs predominately in three isotopic forms, C-12, C-13 and C-14. Out of these, C-12 is the…

Q: 1. More than 2000 years ago human cultures figured out a way to produce iron metal from rocks…

A: Since you have posted a question with multiple sub-parts, we will solve the first three subpartsfor…

Q: Balance the following equation and calculate its ΔSo in units of J mol-1 K-1.   Fe(s) + H2O(l) →…

A: Balancing :  Fe(s) + H2O(l) → Fe3O4(s) + H2(g) Since in the above reaction we have 3 Fe in RHS while…

Q: What mass of Ba(IO3)2 (487 g/mol) can be dissolved in 1 L of water at 25°C? Ba(IO3)2 = Ba2+ + 2 IO3…

A: Ksp is the product of concentration of ions of sparingly soluble salt.

Q: Phosphate buffered saline (PBS) is a very common reagent in cell biology labs that do cell culture…

A: The components of 10X PBS are 10.5 mM KH2PO4, 1.552 M NaCl and 29.7mM Na2HPO4. Volume of 10X PBS…

Q: Two highly soluble salts, AB2 and C3D, are mixed together in an Erlenmeyer flask. The solution is…

A: Given [AB2] = 1.50*10-9 M  [C3D] = 8.50*10-12 M For A3D2(s), Ksp = 3.09*10-46   For CB(s), Ksp =…

Q: 1. More than 2000 years ago human cultures figured out a way to produce iron metal from rocks…

A: Answer e:              We can write overall reaction and calculate the change in enthalpy and…

Q: student tried to detect the presence of calcium ion (Ca2+) in milk by adding Na2SO4 solution to a…

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Q: Consider these compounds: А. СоСОз B. AgBr C. Fe2S3 D. Caз (РOд)2 Complete the following statements…

A: To check solubility of salts , we can compare their Ksp values.   Salt having higher Ksp value is…

Q: How many of the processes below have a positive AS? H,O) - H;0(g) The heating of 35 g of water from…

A: The number of processes which have positive entropy is given below

Q: Consider the reaction in the Haber process 3H2 (g) + N2 (g) → 2NH3 (g)where delta H° = -91.8 kJ/mol…

A: At a given temperature, pressure, as well as number of atoms, the Gibbs Free Energy discusses a…