A scientist measures the standard enthalpy change for the following reaction to be -1142.2 kJ: 2H2S(g) + 3 O2(g)2H2O(l) + 2 SO2(g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of SO2(g) is  ______ kJ/mol.

Q: Which of the following glycosidic linkage is found in maltose? *   A. Glucose (a1-2B) Fructose B. Gl...

A: Glycosidic linkage is the linkage between two monosaccharide units through oxygen atoms with the los...

Q: Consider the following endothermic reaction at 345.0 °C HBr (g) = > H2 (g) + Bi2 (g) Kp=4.18×10^-9 A...

A: Given endothermic reaction is :  2HBr (g) <---------> H2 (g) + Br2 (g)  Pressure equilibrium c...

Q: Calculate the vapor pressure of a solution made by dissolving 82.4 g of urea (molar mass = 60.06 g/m...

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Q: 3. Predict which one is more stable (i.e., has the larger dissociation energy) and explain your answ...

A: A. F2+ b. NO+ c. CO d. Li2

Q: Write the complex hydrogen atom wave functions, 2p-1, 2po, and 2p1 in terms of the real wave functio...

A: We need to write the complex wavefunctions in terms of the real wavefunctions.

Q: 10. An ore containing magnetite, Fe304, was analyzed by dissolving a 0.9859-g sample in concentrated...

A: Answer: This question is based on stoichiometric calculation where we have find out the number of mo...

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Q: Draw a structural diagram for 1-pentanol. - you do not have to consider stereochemistry - you do n...

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Q: The protein content of the unknown samples were determined using BSA as standard. The absorbance val...

A: Given data for standard:

Q: (w/w)

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Q: d) A(n) reaction is one where the products have lower energy than the reactants. is a device used to...

A: (d) --> An exothermic reaction is one where the products have lower energy than the reactants. (e...

Q: catalytic hydrogenation.

A:

Q: Enter your answer in the provided box. A sheet of gold weighing 9.6 g and at a temperature of 13.6°C...

A: Given,  Mass of Gold, mAu = 9.6 g  Temperature, TAu = 13.6 °C  Mass of iron, mFe = 18.0 g  Temperatu...

Q: он 1. HCI 2. NaHCO3 Starting material Theoretical _ 7.81 g 74.12 g/mol 0.781 g/mL 105.34 mmol mass c...

A: As we've given, mass of tert-butyl chloride = 6.421g. We know molecule weight of tert-butyl chloride...

Q: Write the equation for the preparation of soap from stearic acid and NaOH. Explain the reaction.

A: Given,  Write the equation for the preparation of soap from stearic acid and NaOH. Explain the react...

Q: 1) Fill the blanks in the following sentences with the correct thermodynamics term- b) c) The substa...

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Q: Enter your answer in the provided box. The reaction 2A B is first order in A with a rate constant of...

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Q: 1. Observing pH Changes in Water and Buffer Solutions upon Addition of HCI and NAOH Solutions soluti...

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Q: I. Observing pH Changes in Water and Buffer Solutions upon Addition of HCl and NaOH Solutions soluti...

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Q: Q2 : At 25°C, K = 3.40 x 10-3 S m-1 for 0.00100 M NH4OH. Values of Lo are: NH4C1 = 0.01497, NaOH = 0...

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Q: Compute the E°cell and determine whether spontaneous or not. A. Zn and Fe B. Fe and Pb C. Zn and Pb

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Q: Compound A is an alcohol that undergoes oxidation to produce compound B. Compound B is a ketone that...

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Q: 3. Predict which one is more stable (i.e., has the larger dissociation energy) and explain your answ...

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Q: Draw a structural diagram for 2-butanol - you do not have to consider stereochemistry - you do not...

A: Structural Diagram : 

Q: a It has two starting reactants forming a single product. b. It has three steps. c The third step is...

A: Answer: This diagram is based on collision theory, according to which, to form a product, two molecu...

Q: needs to synthesize 2-pentanone from 1-butyne. help her by suggesting a synthetic scheme she has to ...

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Q: 1. The density of a 2.45 M aqueous solution of methanol (CH3OH) is 0.976 g/mL. What is the molality ...

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Q: How is a coffee cup calorimeter a "constant pressure" device? In this scenario, what is the "system ...

A: Given mass of barium = 2.50 gram Given mass of water = 100 gram Initial temperature = 22 ℃  Final te...

Q: HO F HO,

A: IUPAC naming have following rules:-  Longest chain having maximum number of carbon atoms is the par...

Q: A 0.5 m aqueous solution of sugar was boiled. At what temperature did this temperature did it boil i...

A: Dear student, since you have asked multiple questions but according to guidelines we will solve 1st ...

Q: at a rate

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Q: Calculate the pH of a 0.50 mol/L potassium acetate (KCH3COO) solution. Ka(CH3COOH) = 1.8 x 10-5 for ...

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Q: Fill up the empty boxes with the correct chemical structures. CN OH Ph

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Q: If a rock contains 75% lead 206 (Pb206) and 25% uranium 238 (U238), how old is the rock? Explain ho...

A: The question is from radioactive Series. Uranium -238is a radioactive element that converts to pb-20...

Q: Enter your answer in the provided box. Given the same reactant concentrations, the reaction Co(g) + ...

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Q: Calculate the pH of a 0.87 M methylamine solution.

A: pH of solution is defined as negative logarithm of hydrogen ions. 

Q: 3. For the reaction, N204(g) 2 nitrogen dioxide (g) At 25°C, the equilibrium concentrations of nitro...

A: Given Equilibrium concentrations [N2O4 ] = 0.0898 M [NO2] = 0.0204 M

Q: 1-methylcyclobut-1-ene with Cl, in dark conditions 2-methylprop-1-ene with O3, Zn, H;O, H*

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Q: Enter your answer in the provided box. Given the same reactant concentrations, the reaction CO(g) + ...

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Q: Which name of this compound [Al F6]??

A: We have to Wright name of [AlF6]

Q: Identify the molecular partition function for a molecule that has three energy levels with energies ...

A: Molecular partition function q = ∑gie−Ei/kT  q = goe−Eo/kT + g1e−E1/kT + g2e−E2/kT

Q: A general chemistry student, Molly Cule, needs to dissolve two solutes (CH2O and CH3CH3). Her choice...

A: There is a thumb rule in chemistry that LIKE DISSOLVES LIKE. This means polar solute is soluble in p...

Q: ermine the value of the equilibrium constant fro the reaction A + 2B = 20 L0 mol of A and 1.5 mol of...

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Q: Write the equation for the preparition of soap from stearic acid and NaOH. Explain the reaction.

A: Preparation of soap from stearic acid and NaOH is a process called saponification. 

Q: Identify whether the statement is true or false. All exothermic phase changes have a negative value ...

A: Entropy is the measure of randomness or disorderness.

Q: Give and compare the MP of the following compounds. Show the structure of each compound for you to h...

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Q: 14. 15. Ha PO 16. Br Br (BuONa (2 equiv) t-BUOH heat 17. HO 312 NO2 O2N

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Q: OH F OH

A: