12. Consider the following process. + 2H,O(e) AH = -802 kJ %3D CH4 (8) + 202 (8) 2 CO2 (8) A) Is the reaction exothermic or endothermic? B) What is the enthalpy change for the following reaction? 1/2CH, (e) + O2 (e) 0 1/2 CO2 (e) + H,O(e) 2 (g)

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A: Given data ,  V1 = 0.5 L  and V2 = ??  P1 = P        and P2 = 1/3P  T1 = T        and  T2 = 2P  We w...

Q: 12) Explain why compound 2 is a much weaker bane than compound 1 (approximately 1000 tirmes less bas...

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Q: C + S2 - CS2 2 Cs3 - 2 CS2 + S2 AH° = -200 kJ ДН 3 50.0 k] Given: Find AH for : 2 C + 3 52 - 2 CS3 О...

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Q: Provide reagents and conditions with mechanisms to produce the products indicated. HO OH o-CH3 OH OH...

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Q: 16. Provide the major organic product of the following reaction. Zn(Hg), HCI, H,0

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please re...

Q: How many grams of NaBr would be needed to prepare 700 ml of 0.230 M NaBr solution?

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Q: Part A: Percent Yield of Sodium Carbonate from Baking Soda 97.18g Mass of test tube and beaker ११. २...

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Q: 4 Fe + 30, 2 Fe,O; AS°3ys = - 225 J /K AH® 0.0 0.0 -98.3 kJ/mol What is AS° univ if AS°ys = - 225 J/...

A:

Q: A student heats 84.17 mL of water to 95.27°C using a hot plate. The heated water is added to a calor...

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Q: amount of heat

A:

Q: lead to a decrease in the entropy of the system? (select all that apply) 1) salt crystals dissolve ...

A: Entropy is degree of randomness or disorderness.  The order of Entropy in various phases,  Solid &lt...

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A: Given :  Kp = 141  PNO = 0.597 atm  PNO2 = 0.319 atm   

Q: Reversible Reaction Types of Chemical Reaction irreversible reaction Na,so, + BaCI, 2NaCI + BaSO̟l A...

A: Reversible reaction - - > A reversible reaction is a reaction in which both reactants are convert...

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A: Molarity of solution is defined as number of moles of solute dissolved per litre of solution.

Q: e volume (in lit

A:

Q: A. Four acceptor atoms

A: Let us discuss acceptor atoms and donor atoms and their examples.

Q: 4. What is the expected major product for the following reaction? HO OH

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Q: R-COH + EtsN → k-CO2 Bn Bn0 PhC P3 Me

A:

Q: 16. Provide the major organic product of the following reaction. Zn(Hg), HCI, H,0 17. Provide the ma...

A: Zn-Hg/HCl is a reducing agent, it reduces the C=O to an alkane. This is known as Clemmensen reductio...

Q: Which reactions have a positive ASrxn?

A:

Q: What is the pH of a solution that is 0.250 M formic acid and 1.75 M sodium formate? Ka= 1.8x104 A 6....

A: Given- Concentration of formic acid= 0.250M Concentration of sodium format =1.75 M  Ka=1.8×10^-4  

Q: Give a clear handwritten answer...

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Q: 17. Specific gravity of lipid is А. 0.2 В. О.8 С. 1.0 D. 1.5

A: To identify: Specific gravity of lipid.  

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A: Ethylene diamine is a bidentate ligand...

Q: Calculate the [Y"] in a saturated solution of YF3 in 0.003150 M NaF(). (Kap for YF3 = 8.6 x 10") %3!

A: Solubility product (Ksp) is defined as the products of ions present in a solution of a salt.

Q: 1. Suppose there is an atom of oxygen, containing eight protons and eight neutrons in the nucleus, a...

A: 1. An oxygen atom has eight protons and eight neutrons in the nucleus. Another four neutrons are add...

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A: Given,  The pH range of the indicator that has ka of 5.21 × 10-4  is:

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A: Group 3 cation involve Cr3+ , Al3+ , Ni2+ and Fe3+.

Q: For H3PO3, which is actually a diprotic acid, K,1-2.04 x 102 and Ka2-4.56 x 10. Calculate the pH of ...

A:

Q: The oxidatiun of iodide ion by hydrogen peroxrde by in an acidic soution is described the balanced e...

A: H2O2(aq) + 3I-(aq) ----> I3-(aq) + 2H2O(l) rate = k [H2O2]x [I-]y        

Q: 6. Which of the following statements is true about the following acid/base reaction? F (aq) + HSO4 (...

A: pH is measure of acidity or basicity of a solution.. pH less than 7 indicate solution is acidic. pH ...

Q: The work done to compress a gas is 67.0 J. As a result, 29.0 J of heat is given off to the surroundi...

A: Given, work done, w = +67.0 J Heat, q = -29.0 J

Q: chemist needs to make 120.5 g of LiH, how many mL of 4.5 M solution of NaH must

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A: Nuclear chemistry is the branch of chemistry in which we deal with positron emission, electron emiss...

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A: Solution is made up of two components which are solute and solvent. Solute is present in the minor a...

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A: We have to tell the name of the stage when the number of moles of the titrant is stoichiometrically ...

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Q: What is the molar solubility of Sn(OH), in a buffer solution containing equal concentrations of NH, ...

A: 1.) To calculate solubility of Sn(OH)2 in buffer solution , we would first calculate pOH if buffer s...

Q: Liquid mercury has a density of 13.69 g cm^-3, and solid mercury has a density of 14.690 g cm^-3 bot...

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Q: How will you prepare 70 mL of 0.8% (w/v) CsCl?  A. Put 0.56 g CsCl into a beaker then add 64.4 mL di...

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Q: Name Date Sect. Data Report Sheet: Quantitative Analysis of Group III Cations Unknown # 2I Draw the ...

A: Group 3 cation involve Cr3+ , Al3+ , Ni2+ and Fe3+.

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A: Given, NO(g) + F2(g) ➝ NOF(g) + F(g) Activation energy (Ea) = 6.30 kJ/mol = 6.30 × 1000 J/mol = 6300...

Q: 3. H,C CHz // エ

A: 1. Select the principle carbon chain 2. Numbering 3. Naming (prefix + word root + suffix)

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Q: 4 Fe 3 0, 2 Fe,O3 AS° sys = - 225 J/K + AH° 0.0 0.0 -98.3 kJ/mol What is AS°uniy if AS° sys = - 225 ...

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Q: Predict the products of the following reaction and state whether they will occur via E1 or E2 mechan...

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Q: How many ethyl side chains are on the backbone of the structure shown below?

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Q: 3. Identify if the following is a pyrimidine/purine nucleotide or a pyrimidine/purine nucleoside and...

A: Pyrimidine :- pyrimidine ring is a six membered heterocyclic aromatic organic molecules having 1,3 p...