The standard enthalpy of formation of SnCl₂ (s) is - 340 kJ/mol and that for SnCl4 (s) is-511 kJ/mol. From these data, we can calculate that for the reaction SnCl₂ (s) + Cl₂ (g) →→SnCl4 (s), the value of AH O cannot be determined as AH, for Cl₂ (g) is not given. O equals - 851 kJ. O equals + 171 kJ. O equals - 171 kJ.

The standard enthalpy of formation of SnCl₂ (s) is - 340 kJ/mol and that for SnCl4 (s) is-511 kJ/mol. From these data, we can calculate that for the reaction SnCl₂ (s) + Cl₂ (g) →→SnCl4 (s), the value of AH O cannot be determined as AH, for Cl₂ (g) is not given. O equals - 851 kJ. O equals + 171 kJ. O equals - 171 kJ.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Reading List Question 14 of 23 Submit A solid 30.2 cm block of KCIO, is heated in the laboratory and decomposes according to the following reaction. What is the change in enthalpy in kJ when all the solid KCIO, decomposes? The density of KCIO, is 2.34 g/cm3 2 KCIO,(s)→ 2 KCI(s) + 3 0,(g) AH= -89.4 kJ STARTING AMOUNT ADD FACTOR ANSWER RESET •( ) -25.8 -42.4 3 2.34 -11 1 30.2 -89.4 74.55 -51.6 32.00 122.55 6.022 x 1023 mol Oz g O2 kJ mol KCIO; cm g KCIO, mol KCI g KCI g/cm MacBook Air F12 F10 F11 F9 F7 F8 吕0 F3 F6 F4 F5 FI & * # % 9 * OC %24
Two baking sheets are made of different metals. You purchase both and bake a dozen cookies on each sheet at the same time in your oven. You observe that after 9 minutes, the cookies on one sheet are slightly burned on the bottom, whereas those on the other sheet are fine. (You are curious and you vary the conditions so you know the result is not caused by the oven.) (a) How can you use this observation to infer something about the specific heat of the materials in the baking sheets? (b) What is the mathematical reasoning (equation) that you need to support your conclusion?
Determine the enthalpy (in kJ/mol) for the reaction 3 SiCl₄ (s) + 4 Fe (s) → 4 FeCl₃ (s) + 3 Si (s) (Please show steps)
Q4/ AH, = -353.37 KJ for the following reaction at 298 K. F2 + 2HCI → 2HF + Cl2 All substances are gaseous. AH,(HF)= -268.79 KJ/mol . What is AH (HCI), in KJ/mol? And calculate the AE.
At one time, a common means of forming small quantities ofoxygen gas in the laboratory was to heat KClO3:2 KClO3(s)---->2 KCl(s) + 3 O2(g) ΔH = -89.4 kJFor this reaction, calculate ΔH for the formation of (a) 1.36 molof O2 and (b) 10.4 g of KCl. (c) The decomposition of KClO3proceeds spontaneously when it is heated. Do you thinkthat the reverse reaction, the formation of KClO3 from KCland O2, is likely to be feasible under ordinary conditions?Explain your answer.
When 27.5 mL of 0.500 M H2SO4 is added to 27.5 mL of 1.00 M KOH in a coffee-cup calorimeter at 23.50°C, the temperature rises to 30.17°C. Calculate ΔH of this reaction. (Assume that the total volume is the sum of the individual volumes and that the density and specific heat capacity of the solution are the same as for pure water.) (d for water = 1.00 g/mL; c for water = 4.184 J/g·°C.)
Consider the reaction of dinitrogen tetroxide with carbon monoxide and yielding dinitrogen monoxide and carbon dioxide. Write and balance the equation. If the values for the molar enthalpies of formation for the gaseous reactants and products carbon monoxide, carbon dioxide, dinitrogen monoxide, and dinitrogen tetroxide are -110 kJ, -393 kJ, 81 kJ, and 9.7 kJ respectively, calculate the enthalpy for the reaction.
E In a constant-pressure calorimeter, 70.0 mL of 0.300 M Ba(OH), was added to 70.0 mL of 0.600 M HCl. The reaction caused the temperature of the solution to rise from 23.98 °C to 28.07 °C. If the solution has the same density and BO specific heat as water (1.00 g/mL and 4.184J/g °C,) respectively), what is AH for this reaction (per mole H₂O produced)? Assume that the total volume is the sum of the individual volumes. AH = kJ/mol H₂O
Assignment (Polyn A app.101edu.co : Apps MYUSU O Outlook Canvas Labflow OneNote 101 Chem101 Tophat & USU Tutoring Question 15 of 19 Using the equations 2 Fe (s) + 3 CI, (g) → 2 FeCl, (s) AH° = -800.0 kJ/mol Si(s) + 2 CI, (g) → SICI, (s) AH° = -640.1 kJ/mol Determine the molar enthalpy (in kJ/mol) for the reaction 3 SICI, (s) + 4 Fe (s) → 4 FeCl, (s) + 3 Si (s)
Calculate total work done (in Joules) when 50 g of iron is dissolved in HCl in an open beaker at 45oC and 5 atm. (Molar mass of Fe = 56 g/mol; 1 L atm = 101.325 J)
THERMODYNAMICS: Use the given standard enthalpies of formation to calculate the ΔHo (in kJ) for the hypothetical reaction: (Round off the final answer to ONE decimal place. Do not include the unit.) 2X2D (g) + 3M2 (g) → 2X2M (l) + 2DM2 (g) ΔHof for X2D (g) = -24.6 kJ/mol ΔHof for DM2 (g) = -292.7 kJ/mol ΔHof for X2M (l) = -286.4 kJ/mol ΔHof for M2 (g) = 0 kJ/mol
Consider these reactions, where M represents a generic metal. 1. 2 M's) + 6 HCI(аq) 2 MCI, (aq) + 3 H,(g) AH¡ = -655.0 kJ 2. HCl(g) HCl(aq) AH2 = -74.8 kJ 3. H,(g) + Cl, (g) – 2 HCI(g) AH3 = -1845.0 kJ 4. MCI, (s) - MCI, (aq) AH4 = -300.0 kJ Use the given information to determine the enthalpy of the reaction 2 M(s) + 3 Cl,(g) 2 MCI, (s) ΔΗ- kJ