Chemistry: An Atoms First Approach
2nd Edition
ISBN: 9781305079243
Author: Steven S. Zumdahl, Susan A. Zumdahl
Publisher: Cengage Learning
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Chapter 7, Problem 55E
A 5.00-g sample of aluminum pellets (specific heat capacity = 0.89 J/ºC • g) and a 10.00-g sample of iron pellets (specific heat capacity = 0.45 J/ºC • g) are heated to 100.0ºC. The mixture of hot iron and aluminum is then dropped into 97.3 g water at 22.0ºC. Calculate the final temperature of the metal and water mixture, assuming no heat loss to the surroundings.
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Give the organic product:
O A
O B
Ос
○ D
-NH–CH3
+
CH3
CH3
NEN C
?
A
CH3
CH3
NH-
CH3
B
CH3
CH3
N=N-
C
CH3
CH3
N=NNH
CH3
D
CH3
N=N
CH3
NHCH3
LNH CHO
Finish the reaction- hand written please
Give the organic products: (benzyne)
Br
?
CH3
+
K* :NH,
liq NH3
HINT: Two products are formed. Each is a substituted aniline;
they are isomers of each other.
NH2
II
I
H₂N.
CH3
CH3
III
Select one:
○ A. I and II
○ B. I and III
O C. I and IV
O D. II and III
O E. III and IV
H₂N
CH3
IV
CH₂-NH2
Chapter 7 Solutions
Chemistry: An Atoms First Approach
Ch. 7 - Define the following terms: potential energy,...Ch. 7 - Consider the following potential energy diagrams...Ch. 7 - What is the first law of thermodynamics? How can a...Ch. 7 - When a gas expands, what is the sign of w? Why?...Ch. 7 - Prob. 5RQCh. 7 - High-quality audio amplifiers generate large...Ch. 7 - Explain how calorimetry works to calculate H or E...Ch. 7 - What is Hesss law? When a reaction is reversed,...Ch. 7 - Define the standard enthalpy of formation. What...Ch. 7 - Prob. 1ALQ
Ch. 7 - Prob. 2ALQCh. 7 - A fire is started in a fireplace by striking a...Ch. 7 - Liquid water turns to ice. Is this process...Ch. 7 - Prob. 5ALQCh. 7 - Prob. 6ALQCh. 7 - Consider 5.5 L of a gas at a pressure of 3.0 atm...Ch. 7 - Explain why oceanfront areas generally have...Ch. 7 - Hesss law is really just another statement of the...Ch. 7 - Prob. 10ALQCh. 7 - Prob. 11QCh. 7 - Prob. 12QCh. 7 - Assuming gasoline is pure C8H18(l), predict the...Ch. 7 - Prob. 14QCh. 7 - The enthalpy change for the reaction...Ch. 7 - For the reaction HgO(s)Hg(l)+12O2(g),H=+90.7KJ: a....Ch. 7 - Prob. 17QCh. 7 - The enthalpy change for a reaction is a state...Ch. 7 - Standard enthalpies of formation are relative...Ch. 7 - The combustion of methane can be represented as...Ch. 7 - Prob. 21QCh. 7 - Prob. 22QCh. 7 - Prob. 23QCh. 7 - Prob. 24QCh. 7 - Prob. 25ECh. 7 - Prob. 26ECh. 7 - Consider the following diagram when answering the...Ch. 7 - Consider the accompanying diagram. Ball A is...Ch. 7 - A gas absorbs 45 kJ of heat and does 29 kJ of...Ch. 7 - A system releases 125 kJ of heat while 104 kJ of...Ch. 7 - Calculate E for each of the following. a. q = 47...Ch. 7 - A system undergoes a process consisting of the...Ch. 7 - If the internal energy of a thermodynamic system...Ch. 7 - Calculate the internal energy change for each of...Ch. 7 - A sample of an ideal gas at 15.0 atm and 10.0 L is...Ch. 7 - Prob. 36ECh. 7 - Consider a mixture of air and gasoline vapor in a...Ch. 7 - As a system increases in volume, it absorbs 52.5 J...Ch. 7 - A balloon filled with 39.1 moles of helium has a...Ch. 7 - Prob. 40ECh. 7 - One of the components of polluted air is NO. It is...Ch. 7 - Prob. 42ECh. 7 - Are the following processes exothermic or...Ch. 7 - Are the following processes exothermic or...Ch. 7 - The overall reaction in a commercial heat pack can...Ch. 7 - Consider the following reaction:...Ch. 7 - Consider the combustion of propane:...Ch. 7 - Consider the following reaction:...Ch. 7 - Prob. 49ECh. 7 - The specific heat capacity of silver is 0.24 J/Cg....Ch. 7 - A 500-g sample of one of the substances listed in...Ch. 7 - Prob. 52ECh. 7 - A 30.0-g sample of water at 280. K is mixed with...Ch. 7 - A biology experiment requires the preparation of a...Ch. 7 - A 5.00-g sample of aluminum pellets (specific heat...Ch. 7 - Hydrogen gives off 120. J/g of energy when burned...Ch. 7 - Prob. 57ECh. 7 - A 110.-g sample of copper (specific heat capacity...Ch. 7 - In a coffee-cup calorimeter, 50.0 mL of 0.100 M...Ch. 7 - In a coffee-cup calorimeter, 100.0 mL of 1.0 M...Ch. 7 - A coffee-cup calorimeter initially contains 125 g...Ch. 7 - In a coffee-cup calorimeter, 1.60 g NH4NO3 is...Ch. 7 - Consider the dissolution of CaCl2:...Ch. 7 - Consider the reaction...Ch. 7 - The heat capacity of a bomb calorimeter was...Ch. 7 - The combustion of 0.1584 g benzoic acid increases...Ch. 7 - The enthalpy of combustion of solid carbon to form...Ch. 7 - Combustion reactions involve reacting a substance...Ch. 7 - Given the following data calculate H for the...Ch. 7 - Given the following data...Ch. 7 - Prob. 71ECh. 7 - Calculate H for the reaction...Ch. 7 - Given the following data...Ch. 7 - Given the following data...Ch. 7 - Give the definition of the standard enthalpy of...Ch. 7 - Write reactions for which the enthalpy change will...Ch. 7 - Prob. 77ECh. 7 - Use the values of Hf in Appendix 4 to calculate H...Ch. 7 - The Ostwald process for the commercial production...Ch. 7 - Calculate H for each of the following reactions...Ch. 7 - The reusable booster rockets of the space shuttle...Ch. 7 - The space shuttle Orbiter utilizes the oxidation...Ch. 7 - Consider the reaction...Ch. 7 - The standard enthalpy of combustion of ethene gas,...Ch. 7 - Water gas is produced from the reaction of steam...Ch. 7 - Prob. 86ECh. 7 - Prob. 87ECh. 7 - Prob. 88ECh. 7 - Some automobiles and buses have been equipped to...Ch. 7 - The complete combustion of acetylene, C2H2(g),...Ch. 7 - Prob. 91AECh. 7 - One way to lose weight is to exercise! Walking...Ch. 7 - Three gas-phase reactions were run in a...Ch. 7 - Nitrogen gas reacts with hydrogen gas to form...Ch. 7 - Combustion of table sugar produces CO2(g) and H2O(...Ch. 7 - Prob. 96AECh. 7 - Consider the following cyclic process carried out...Ch. 7 - Calculate H for the reaction...Ch. 7 - The enthalpy of neutralization for the reaction of...Ch. 7 - Prob. 100AECh. 7 - If a student performs an endothermic reaction in a...Ch. 7 - In a bomb calorimeter, the reaction vessel is...Ch. 7 - The bomb calorimeter in Exercise 102 is filled...Ch. 7 - Prob. 104AECh. 7 - Consider the following equations:...Ch. 7 - Prob. 106AECh. 7 - At 298 K, the standard enthalpies of formation for...Ch. 7 - Prob. 108AECh. 7 - A sample of nickel is heated to 99.8C and placed...Ch. 7 - Quinone is an important type of molecule that is...Ch. 7 - Calculate H for each of the following reactions,...Ch. 7 - Compare your answers from parts a and b of...Ch. 7 - Compare your answer from Exercise 72 of Chapter 3...Ch. 7 - Consider a balloon filled with helium at the...Ch. 7 - Prob. 115CWPCh. 7 - Prob. 116CWPCh. 7 - Prob. 117CWPCh. 7 - A swimming pool, 10.0 m by 4.0 m, is filled with...Ch. 7 - Prob. 119CWPCh. 7 - Calculate H for the reaction...Ch. 7 - Which of the following substances have an enthalpy...Ch. 7 - Consider 2.00 moles of an ideal gas that are taken...Ch. 7 - For the process H2O(l)H2O(g) at 298 K and 1.0 atm,...Ch. 7 - The sun supplies energy at a rate of about 1.0...Ch. 7 - Prob. 125CPCh. 7 - The standard enthalpies of formation for S(g),...Ch. 7 - Use the following standard enthalpies of formation...Ch. 7 - The standard enthalpy of formation for N2H4(g) is...Ch. 7 - The standard enthalpy of formation for NO(g) is...Ch. 7 - A piece of chocolate cake contains about 400...Ch. 7 - You have a l.00-mole sample of water at 30.C and...Ch. 7 - A 500.0-g sample of an element at 195C is dropped...Ch. 7 - A cubic piece of uranium metal (specific heat...Ch. 7 - On Easter Sunday, April 3, 1983, nitric acid...Ch. 7 - Using data from Chapter 2, calculate the change in...Ch. 7 - In Exercise 89 in Chapter 3, the Lewis structures...Ch. 7 - A gaseous hydrocarbon reacts completely with...
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- Predict the major products of this organic reaction: HBr (1 equiv) cold ? Some important notes: • Draw the major product, or products, of this reaction in the drawing area below. • You can draw the products in any arrangement you like. • Pay careful attention to the reaction conditions, and only include the major products. • Be sure to use wedge and dash bonds when necessary, for example to distinguish between major products that are enantiomers. • Note that there is only 1 equivalent of HBr reactant, so you need not consider the case of multiple additions. Erase something Explanation Check 2025 McGraw Hill LLC. All Rights Reserved. Terarrow_forwardQ14. Fill this chart: (please refer to ppt notes/browser to answer these questions) What alcohol is also called wood alcohol? What is the common name of ethanol? Draw the structure of phenol and thiophene? Are bigger chain alcohol like heptanol and octanol are soluble or insoluble in water and explain it ? Are ethers soluble or insoluble in water? What suffix and prefix are used for alcohol while naming alcohol and ether? What the process called when we add water to any alkene to make alcohol? Q16. Draw the diagram of following aromatic compound (practice from previous module) Aniline Phenol Benzoic acid Methyl benzoate Q17. a. Write the oxidation reactions for the 2 propanol. b. Write the oxidation reaction of the ethanol.arrow_forwardQuestion 11 of 18 (1 point) Question Attempt: 3 of How many signals do you expect in the 'H NMR spectrum for this molecule? Br Br Write the answer below. Also, in each of the drawing areas below is a copy of the molecule, with Hs shown. In each copy, one of the H atoms is colored red. Highlight in red all other H atoms that would contribute to the same signal as the H already highlighted red. Note for advanced students: In this question, any multiplet is counted as one signal. Number of signals in the 'H NMR spectrum. 1 For the molecule in the top drawing area, highlight in red any other H atoms that will contribute to the same signal as the H atom already highlighted red. If no other H atoms will contribute, check the box at right. No additional Hs to color in top molecule Check For the molecule in the bottom drawing area, highlight in red any other H atoms that will contribute to the same signal as the H atom already highlighted red. If no other H atoms will contribute, check the box…arrow_forward
- Organic Chemistry Esterification reactions 1. Write the steps to prepare ester. 2. Write complete reaction of ethanol and acetic acid to make ester. 3. What does ester smell like? What are the uses of ester. 4. What the role of sulfuric acid in the esterification reactionarrow_forward11. Complete the following esterification reaction with names of all the reactants and products under. Hint: Remove the water and end up with ester R-C-OH + ROH R-C-OR + H₂O A carboxylic acid An alcohol An ester Water BYJU'S H-C-C O-H Нин C-C-C-H HAAA H O-C-C-C-H AAA Ethanoic acid Propanol Water Propyl ethanoate By com CH3COOH + CH3CH2CH2CH₂CH₂OH → Practice for alcohols aldehydes and ketones: 12. Draw the structures from the following names mixed of alcohol/aldehyde and ketone: a. 4-methyl cyclohexanone b. 3-methyl-2-pentenal c. 2,3-dimethylcyclohexanone d. 1,3propanediol or Propane 1,3 diol 13. Write systematic names for the following compounds identify functional group: a. b. (CH3)2CH-C OH c) CH(CH₂)-- OH -,-,arrow_forwardmay you please show all steps! i am having a hard time understanding and applying in this format, thank you!arrow_forward
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- Part A Identify each alcohol as primary, secondary, or tertiary Drag the appropriate items to their respective bins. CH₂ H₂C- -C-OH HO CH₂ Primary Он OH CH₂ OH CCH₂OH CH₂ сн Secondary Tertiary Reset Help CH,CH₂ (CH)CHCH,OH CH,CH,CH,CCH, CHOH CH₂ Different types of alcohol groups Alcohol and its reaction: 8. Combing two alcohol molecules below and completing the reaction with Product .( Hint Reaction called etherification as ether is formed and name the ether once you complete the reaction. Hint.: R-O-H+H-O-RR-O-R Do the reaction: CH₂OH + CH₂OH---→ + H-O-H 9. Write the reaction of formation of alcohol from alkene by adding water: Addition reaction also called hydration reaction as we are adding water which occur always in presence of acid Hint: Break the double bond and add H and OH if symmetrical then add anywhere if unsymmetrical then follow Markovnikov rule H should go to that double bone carbon which has more hydrogen CH2=CH2 + H₂O-→arrow_forwardComplete the reaction hand written pleasearrow_forwardPredict the major products of this organic reaction: HBr (1 equiv) cold ? Some important notes: • Draw the major product, or products, of this reaction in the drawing area below. • You can draw the products in any arrangement you like. • Pay careful attention to the reaction conditions, and only include the major products. • Be sure to use wedge and dash bonds when necessary, for example to distinguish between major products that are enantiomers. • Note that there is only 1 equivalent of HBr reactant, so you need not consider the case of multiple additions. dm Re Explanation Check ©2025 McGraw Hill LLC. All Rights Reserved. Termarrow_forward
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