Q: OH + LDA THF solvent (S) Ph conc. H,SO4, heat OH conc. H,SO4, heat HO.
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Q: Substance D has the following properties: ΔHvap = 30.5 kJ/mol ΔHfus = 5.9 kJ/mol Tb = 89.4 °C Tm…
A: Mass of substance =107.6 grams Molar mass of substance =75 grams Numbe rof moles of substance=Mass…
Q: Calculate AH for the reaction 2 Al (s) + 3 Cl2 (g) →2 AICI3 (s), from the following data. 2 Al (s)…
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Q: 2. Ba(C,H,O,), ( ) + CUSO, ( ) → Cu(C,H,0,), ( ) + BaSO, () 3. ZnSO, () + 2A9NO, ( ) → Zn(NO,)2 () +…
A: A. Pb(NO)3(aq) + BaI2(aq). ---------- pbI2(s)+Ba(NO3)2(aq). B. Ba(C2H3O2)2(aq) +CuSO4(aq)…
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A: Ans. c stands for specific heat
Q: Using the neutralization enthalpy, can the enthalpy of formation of water be found?
A: Enthalpy of formation: The enthalpy of formation of a compound is the change of enthalpy during the…
Q: Define Hess’s law. Did your experimental results support Hess’s law? Use your data to explain your…
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Q: Which of the following processes will increase the potential energy of the system? (You may select…
A: Potential energy of the system is the energy which can be converted to kinetic energy of a system by…
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Q: 2. From the following information, determine AH°fof malonic acid, CH2(COOH)2(s). CH2(COOH)2(s) +…
A: Given: Other provided data: Here, the enthalpies of formation of different compounds and enthalpy…
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Q: I don't understand why the second formula was multiplied by 2 and why the delta G of the 1st formula…
A: To explain why the second reaction is multiplied by 2 and the sign of delta G of the first reaction…
Q: 4. Using the table above and your answers from Question 1 (enthalpy) and Question 2 (entropy),…
A: Acid gives H+ ions and base gains H+ ions.
Q: 1) H3O* 2) ELOH Br 1) CI , AICI3 2) Zn(Hg), HCI, heat conc. HNO3 conc. H2SO4 OCH3
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Q: Give your interpretation in Determination of Heat of Neutralization using the collected data
A: Neutralisation reaction is the reaction of an acid and a base to form salt and water. In this case…
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A: In the neutralisation reaction heat is releases
Q: Sodium chloride is readily soluble in water. When it dissolves, water molecules hydrate individual…
A: Water is polar solvent and it can dissolve ionic solids. Ionic solids are formed form cations and…
Q: Can we find the enthalpy of formation from the elements of water by using the neutralization…
A: Explained as follows
Q: K, for
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
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A: Electronegativity difference between the atoms is in the following order for the given bonds: H-O…
Q: Are the values of ΔHvap and ΔSvap for boiling water going to be positive or negative? Explain if…
A: Given statement is : Are the values of ΔHvap and ΔSvap for boiling water going to be positive or…
Q: Define “HELL" and prove if its endothermic or exothermic
A: An exothermic reaction is the chemical reaction that the energy is released in the form of heat or…
Q: Confider a nou- biteractig particles & thseee aveilable Sige paectecle energy levela lavig energied…
A: We have to predict the number of ways the particles can be distributed.
Q: Which value corresponds to a larger Keq: ΔGo = −8 kJ/mol or ΔGo = 20kJ/mol?
A: The relation between Keq and ΔGo is shown below.
Q: Use the table in the back of the book to calculate the ∆H for the reaction between calcium hydroxide…
A: The standard enthalpy change of a reaction is the difference between the sum of the enthalpies of…
Q: Calculate AS° for NH3(g) + HCI(g) NH.CI(s)- Substance S (J/mol·K) NH3 (g) 192.5 HCI (g) 186.7 NH4CI…
A: Using the following formula, we can calculate the entropy of the reaction,…
Q: 15. What is Hess's Law? How IS It used? Why is It Importaht in chemistry? Explalh your Ideas and…
A: Hess’s law states that the overalls energy change in the chemical reaction is equal to the sum of…
Q: why can you expect all delta H values to be reasonably constant when looking at enthaply
A: Interpretation- To explain why all delta H values to be reasonably constant when looking at…
Q: (aq)2(8) 10. Given the three reactions: Ca) + 2H,O Ca" + 20H + 431 kJ/mol (ag) CaO) + H,O Ca, (aq) +…
A: Note: As per our guidelines, we are supposed to answer only the first question when multiple…
Q: What happens to the equation AG = AH - TAs when the temperature is 0 K? O a. When T=0 then AG = AH +…
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Q: Fill in the following table:
A: PH= - log [H+] and POH = - log [OH-] Relation between PH and POH is PH + POH = 14 Relation between…
Q: So, when there is no value given for a substance O2, you are to assume that it is zero?
A: ∆Hfo of O2=0∆Hfo of formation of O2=0
Q: 1. Predict the sign for AS° and then calculate AS° and AH° from the data in appendix. CO(g) + 2H2(g)…
A: The balanced chemical eqution: CO (g) + 2 H2 (g) ⇔CH3OH (l)
Q: (f) H,SO, (g) HNO, (h) HC10, (i) H,SO;
A: Anion should be name with end -ate Cation should be named as such.
Q: ilin the feouna Chart whn the lonyeature as the udume Chrges Nepl:Find-the quaient if ine hume…
A: We would use the given statement of Charles law to calculate temperatures .
Q: Consider the following reactions: AH= +167.4 kJ/mol 2CIF (6) O2(g) Cl,00 + AH= +341.4 kJ/mol 3F,0…
A: “Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: ΔΗ = -55.84 kJ/mol 'neutralization
A: According to question NaOH +HCl --> NaCl + H2O For trial 1 Mass will remain same, mass of…
Q: Use the following to calculate AH°lattice of MgF2. Mg(s) → Mg(g) AH° = 148 kJ F2(g) → 2 F(g) AH° =…
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Q: 1. NaOMe Ph d. 2. Heat 1. HNME,, H 2. Ph. CI 3. H;O* Bra, ACOH f. Ph 1. NaOMe 2. H,0* Ph 1. NaOMe 2.…
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Q: In an endothermic process AH is always... ONegative O Positive O Less than q O More than q OZero
A: Given Reaction is Exothermic process.
Q: If an equation for a reaction is doubled and then reversed, How is the value of ΔH changed?
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Q: (a) Given that the enthalpy values for the following reactions are: AH = -1049.0 kJ 2 Al (s) + 6HC1…
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Q: Given the following at 25°C, calculate AH; for HCN(g) (in kJ/mol) at 25°C. 2NH3(g) + 302(g) +…
A: To calculate ∆HHCN we will use the formula "Enthalpy change for reaction is equal to sum of…
Q: Calculate AH, for this reaction: rxn NO(g) + O(g)→ NO2(3) Given that: NO(g) + O3(g)→ NO2(g) + O2(g)…
A: Consider the given reaction for which we have to determine ∆Hrxn is as follows; NO g + O g…
Q: Given the following information, AHº (A2B(g)) = -225 KJ/mol AHº (BC(g)) = -160 KJ/mol AHº (AC(g)) =…
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Q: Calculate AS° for C3H4(g) + 2 H2(g) → C3H8(g). Substance S° (J/mol·K) C3H4 (g) 266.9 H2 (g) 130.6…
A: # We can make use of the standard entropy of each of reactants and products to calculate the change…
Q: What is the value of Kw for a sample of pure water at room temperature?
A: Water contains H+ and OH- ions. It is known that the pure water has neutral pH. In other words, the…
Q: Q1/ Calculate the AH, for 3C,H2 (9) AHc (C,H2) = -1.30 J mol1 AHc (C,H.) = -3.303 J mol1 --- C,Hs…
A: The reaction is, 3C2H2 (g)→C2H6 (g) Given that: ∆Hc(C2H2) = -1.30 J/mol ∆Hc(C6H6) = -3.30 J/mol To…
Q: 3Al(s) + 3NH4 CIO,(8) → Al, 0, (s) + AICI3 (s) + 3NO(g) + 6H2O(g) Calculate AHO for this reaction.…
A: Given : We have to calculate the enthalpy change for the reaction.
Determine the Kb for CN- at 25° C. The Ka for HCN is 4.9 x10^-10
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- 18. (a) Molecule N₂H4 (1) + 2 H₂O2 (1) → N2(g) + 4 H₂O (1) Complete the following table: Lewis Dot Structure (use dots or lines to show bonds) (b) (c) (d) N₂H4 H₂O2 N₂ H₂O Calculate the AH°rxn using average bond energies (Table 9.4 in textbook) Calculate the AH°rxn using the standard enthalpies of formation (Appendix 2 in textbook) Why are these two values slightly different?HA, a weak acid with a single proton in a 0.050 M acid solution, ionizes by 16%. The ionization constant of the acid Calculate (Ka)Oxides can react with water to form acids or bases. Identify each of the following oxides as acidic or basic. Write the chemical formula of and give the name of the acid (include 'acid') or base formed upon reaction with water. Acid/Base Acid/Base Oxide Туре Formula Name (a) As,0g (b) Cao (c) Cl,0,
- Use the equation in Exercise 79 to determine H and S for the autoionization of water: H2O(l)H+(aq)+OH-(aq) T(C) KW 0 1.141015 25 1.001014 35 2.091014 40. 2.921014 50. 5.47101420. The ionization constant for water is 1.14*1o-15 at 0 °C and 9.60*10 14 at 60.0 °C. Calculate the value of A G at 60.0 °C. -95.3 kJ/mol 148 kJ/mol -83.0 kJ/mol 83.0 kJ/mol 95.3 kJ/molA baker uses sodium hydrogen carbonate (baking soda) asthe leavening agent in a banana-nut quickbread. The baking sodadecomposes according to two possible reactions: 2NaHCO₃(s)→Na₂CO₃(s)+CO₂(g)+H₂O(l) , NaHCO₃(s)+H⁺(aq)→Na⁺(aq)+CO₂(g)+H₂O(l) Calculate the volume (in mL) of CO₂ that forms at 200°C and0.975 atm per gram of NaHCO₃ by each of the reaction processes.
- 6. Acids and bases are defined by their donation or acceptance of a proton according to the (a) Arrhenius model. (b) Bronsted-Lowry model. (c) Lewis model.1)What is the value of the Langmuir constant "a"? 2)What is the value of the Langmuir constant "b"?8:35 : Question 22 of 23 Submit Which one of the following correctly shows the weak acid equilibrium for trichloroacetic acid, CCl,COOH? A) CCl,COOH (aq) = CCl;CO* (aq) + OH- (aq) В) Cli,COOH (аq) + H,0 (I) — СCl,COOH, (aд) + ОН- (аф) C) CCl,COOH (aq) + H20 (1) = CCI,COO- (aq) + H30* (aq) D) CCl;COOH (aq) + H2O (I) CCl,CO(OH), (aq) + H* (aq) Tap here or pull up for additional resources
- Reaction 1: NaOH(s) -> Na+(AQ) + OH-(AQ) Reaction two: Na+(AQ) + OH-(AQ) + H+(AQ) + -> H2O(I) + Na+(AQ) Assuming reaction 1 has a enthalpy of 59.12 KJ/mol and reaction 2 has a enthalpy of 46.06 kJ/mol Calculate the change in enthalpy for the reaction shown below NaOH(s) + H+(aq) -> H2O(I) + Na+(aq) Delta H = ?One mole of a weak acid, HA, was dissolved in 1.8 L of solution. After the system had come to equilibrium, the concentration of HA was found to be 0.42 M. Calculate Ka for НА. КаDefine and describe the properties of acids and bases with respect to hydrogen ions?
