Custom eBook for Organic Chemistry
2nd Edition
ISBN: 9798214171104
Author: Straumanis
Publisher: Cengage Custom
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Chapter 4, Problem 31CTQ
Draw an arrow on Figure 4.13 representing
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Consider the following data.
2 H₂0 (1)
2 H₂(g) + O₂(g)
2 HNO3(1) = N₂05(9) + H₂O(1)
2 HNO30 (1) ⇒ N₂(g) + 3 O₂(g) + H₂(g)
Use Hess's law to calculate AH for the reaction below.
ΔΗ= |1083.8
AH = +571.7 kJ
AH = +92.0 kJ
AH = +348.2 kJ
x kJ
2 N₂05(9) 2 N₂(g) + 5 O₂(g)
3) Using data from table 1, calculate the enthalpy change of the
chemical reaction represented by the balanced equation:
N2 H2 + F2 (g)
N2 (g) +2HF(g)
>
Rank the elements or compounds in the table below in decreasing order of their boiling points. That is, choose 1 next to the substance with the highest boiling
point, choose 2 next to the substance with the next highest boiling point, and so on.
substance
A
B
с
D
chemical symbol,
chemical formula
or Lewis structure
H
:0:
HIC C-H
|
H
N₂
NO
:0:
||
C
H
-
- N — H
1
H
boiling point
✓ (Choose one)
1 (highest)
2
3
4 (lowest)
(Choose one)
(Choose one)
V
Chapter 4 Solutions
Custom eBook for Organic Chemistry
Ch. 4 - Prob. 1CTQCh. 4 - Figure 4.1 is a cartoon depiction of liquid water...Ch. 4 - Prob. 3CTQCh. 4 - Prob. 4CTQCh. 4 - In HF , neither H nor F holds a full formal charge...Ch. 4 - Prob. 6CTQCh. 4 - Prob. 7CTQCh. 4 - Prob. 8CTQCh. 4 - Within any one section of Table 4.2, boiling...Ch. 4 - Prob. 10CTQ
Ch. 4 - Prob. 11CTQCh. 4 - Prob. 12CTQCh. 4 - Prob. 13CTQCh. 4 - Prob. 14CTQCh. 4 - Prob. 15CTQCh. 4 - Prob. 16CTQCh. 4 - Prob. 17CTQCh. 4 - Prob. 18CTQCh. 4 - Prob. 19CTQCh. 4 - Prob. 20CTQCh. 4 - Prob. 21CTQCh. 4 - Prob. 22CTQCh. 4 - (E) Label each of the following as strong acid,...Ch. 4 - Prob. 24CTQCh. 4 - Draw the structure of the conjugate base of water....Ch. 4 - Does Cl have a conjugate acid? If so, what is it?...Ch. 4 - Draw the conjugate base of CH4 (methane).Ch. 4 - For the previous four questions, label each...Ch. 4 - Prob. 29CTQCh. 4 - According to the conventions above, what is the...Ch. 4 - Draw an arrow on Figure 4.13 representing Hrxn4 ....Ch. 4 - Prob. 32CTQCh. 4 - Add a + or above each curved arrow in Figure 4.11...Ch. 4 - Prob. 34CTQCh. 4 - Prob. 35CTQCh. 4 - Prob. 36CTQCh. 4 - Prob. 37CTQCh. 4 - Prob. 38CTQCh. 4 - Prob. 39CTQCh. 4 - Prob. 40CTQCh. 4 - Prob. 41CTQCh. 4 - Prob. 42CTQCh. 4 - Prob. 43CTQCh. 4 - Prob. 44CTQCh. 4 - Prob. 45CTQCh. 4 - Prob. 46CTQCh. 4 - For NH3 (ammonia) and H2O (water)... a. Use curved...Ch. 4 - Prob. 48CTQCh. 4 - Prob. 49CTQCh. 4 - Prob. 50CTQCh. 4 - Prob. 51CTQCh. 4 - Prob. 52CTQCh. 4 - Prob. 53CTQCh. 4 - Prob. 1ECh. 4 - Prob. 2ECh. 4 - Prob. 3ECh. 4 - Prob. 4ECh. 4 - Prob. 5ECh. 4 - Prob. 6ECh. 4 - Prob. 7ECh. 4 - Prob. 8ECh. 4 - Propanal (bp 48°C) and propanol (bp 97°C), both...Ch. 4 - Rank the following molecules from lowest to...Ch. 4 - Prob. 12ECh. 4 - For each molecule below, draw the conjugate acid...Ch. 4 - For each structure you drew in the answer to the...Ch. 4 - Mark each of the following statements True or...Ch. 4 - Organic chemistry is a bit like cooking. Later in...Ch. 4 - Prob. 17ECh. 4 - Prob. 18ECh. 4 - Are endothermic reactions favorable or...Ch. 4 - Prob. 20ECh. 4 - Is bond formation endothermic or exothermic? Write...Ch. 4 - Summarize the relationship between pKa and acid...Ch. 4 - Summarize the relationship between pKa and base...Ch. 4 - Prob. 25ECh. 4 - Consider the following bases: a. For each base...Ch. 4 - Prob. 27ECh. 4 - The following are equivalent ways of asking about...Ch. 4 - Prob. 29E
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- hat is the enthalpy change for a process? Is enthalpy a state function? In what experimental apparatus are enthalpy changes measured?arrow_forward2) Given the following data, calculate AH for the formation of ethene, C4H8(g). Use Hess's Law and Show your work. C4H8(g) + 6 O2(g) → 4 CO2(g) + 4H₂O(1) + O2(g) → CO2(g) C(s) H2(g) + 2 O2(g) → H₂O(1) AH = -3120 kJ/mole AH = -394.0 kJ/mole AH = -286.0 kJ/molearrow_forward6 с 12.01 1 7 N 16.00 14.01 Surface of water. __ 8 1.008 From the atoms above, draw the THREE (3) types of bonds that are POLAR COVALENT Draw COH4 (methanol, liquid) in LEWIS DOT, show all charges Show the methanol in the presence of TWO (2) water molecules. Show all bonds that will form with water (if any) and all charges. NO need to draw the molecules in Lewis dot for this part. Module Problem 1.20arrow_forward
- Consider the following equation: 2C2H2(g) + 5O2(g) ->4CO2(g) + 2H2O(g) + energy (a) Does the equation represent an endothermic reaction or an exothermic reaction? (b) What effect would this reaction have on the temperature of its surroundings? Compare the temperature of the surroundings before the reaction takes place to the temperature of the surroundings after the reaction takes place. (c) What does the equation communicate about the relative energy of the chemical bonds in the reactants and products? 2. Define and distinguish among the following terms: thermal energy, heat,and temperature. 3. Use the following information to answer the questions below: Q = m × c × DT Q = heat (J) m = mass (g) c = specific heat capacity (J/g · °C) DT = Tf– Ti (°C) For water, c = 4.184 J/g · °C (a) A 50.0 g sample of water at 80.0 °C is mixed in a calorimeter with a 50.0 g sample of water at 5.0 °C. What is the final…arrow_forwardIn a coffee-cup calorimeter, 110.0 mL of 1.2 M NaOH and 110.0 mL of 1.2 M HCl are mixed. Both solutions were originally at 22.5°C. After the reaction, the final temperature is 30.5°C. Assuming that all the solutions have a density of 1.0 g/cm³ and a specific heat capacity of 4.18 J/°C.g, calculate the enthalpy change for the neutralization of HCl by NaOH. Assume that no heat is lost to the surroundings or to the calorimeter. AH = 0.182 kJ/molarrow_forwardNaCl has a lattice energy of -787 kJ/mol. Consider a hypothetical salt XY. X3 + has the same radius of Na+ and Y3 - has the same radius as Cl - . Estimate the lattice energy of XY.arrow_forward
- Rank the elements or compounds in the table below in decreasing order of their boiling points. That is, choose 1 next to the substance with the highest boiling point, choose 2 next to the substance with the next highest boiling point, and so on. substance chemical symbol, chemical formula or Lewis structure boiling point do HIC-H || (Choose one) A HIC H B H₂ (Choose one) :0: || (Choose one) ✓ HIC H Co (Choose one) S ? C D Xarrow_forwardNa+ has higher value of ionization enthalpy than Ne, though both have same electronic configuration.arrow_forwardGiven the following reactions, what is the overall enthalpy change for the following reaction? N H 3 ( g ) + H C l ( g ) ⟶ N H 4 C l ( s ) Reaction ΔHo (kJ) N 2 ( g ) + 3 H 2 ( g ) ⟶ 2 N H 3 ( g ) -92 H 2 ( g ) + C l 2 ( g ) ⟶ 2 H C l ( g ) -185 N 2 ( g ) + 4 H 2 ( g ) + C l 2 ( g ) ⟶ 2 N H 4 C l ( s ) -629arrow_forward
- Rank the elements or compounds in the table below in decreasing order of their boiling points. That is, choose 1 next to the substance with the highest boiling point, choose 2 next to the substance with the next highest boiling point, and so on. chemical symbol, substance chemical formula boiling point or Lewis structure H H H A H – C C - C -0 H (Choose one) ▼ | H H Ag (Choose one) В Ar |(Choose one) - H :0: H Н— С — С С — Н (Choose one) v H. ? :0 : I - O - Tarrow_forwardGiven the following data 2 CIF (g) + O₂(g) → Cl₂ O(g) + F₂O(g) 2 CIF3 (9) +202 (g) → Cl₂ O(g) + 3F₂O(g) 2F2 (g) + O₂(g) → 2F₂O(g) calculate A H for the reaction AH= CIF (g) + F2 (g) → CIF3 (9) Submit Answer kJ Try Another Version ΔΗ = 167.4 kJ Δ Η = 341.4 Κ Δ Η = -43,4 kJ item attempt remainingarrow_forwardThe diagram below shows a system that is made up of 3 molecules (labeled A, B, and C) that contains a total of 4 units of energy. Assuming that no molecule can have 0 energy associated with it, and that only integral amounts of units of energy are allowed (energy = 1 or energy = 2 is allowed, but energy = 1.5 is not). In the left-most diagram, one possible way of distributing the four units of energy among these three molecules is presented. This distribution is represented as: (1, 1, 2). %3D 6 SEE 6 5 4 4 4 3 3 3 2 2 1 1 1 A B C AB C АВС (1, 1, 2) a. Show explicitly that a total of 4 units of energy are present in the left-most diagram. b. Explain why (1, 3, 0) is not an allowed distribution for this system. Show the other two allowed distributions of energy for this system using the two blank diagrams, and write the corresponding representation below each diagram. С.arrow_forward
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