General, Organic, and Biological Chemistry, Books a la Carte Edition (3rd Edition)
3rd Edition
ISBN: 9780134162003
Author: Laura D. Frost, S. Todd Deal
Publisher: PEARSON
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Textbook Question
Chapter 5, Problem 5.23PP
Write the products and balance the following reaction for the complete combustion of ethane. C2H6.
C2H6(g) + O2(g) → ?
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Consider the ideal combustion of ethanol:
Β Β Β Β Β Β Β Β Β Β C2H5OH(β)Β Β +Β Β 3 O2(g)Β Β Β βΒ Β 2 CO2(g)Β Β +Β Β 3 H2O(β)Β Β Β βHoΒ = -1367.5
molar masses (g/mol):Β C2H5OHΒ - 46.07Β Β Β Β CO2Β - 44.01Β
Indicate theΒ 3Β statements about the ideal combustion of ethanol that are true by checking the box in front of each true statement.
Β
Β
The reaction is endothermic.
Β
Β
The reaction is exothermic.
Β
Β
There is more chemical energy stored in the products than in the reactants.
Β
Β
When 50.0 g of ethanol combusts, 47.8 g of carbon dioxideΒ areΒ formed.Β
Β
Β
When 50.0 g of ethanol combusts, 1480 kJΒ are released.
Β
Β
When 1030 kJ are released, 40.7 g of water are formed.
cells use the hydrolysis of adenosine triphosphate, abbreviated as ATP, as a source of energy. Symbolically, this reaction can be written as ATP(aq) + H2O(l)--> ADP(aq) + H2PO4-(aq).
where ADP represent adenosine diphosphate. For this reaction, ΞGβ=-30.5kj/mol.
a. If all the free energy from the metabolism of glucose goes into forming ATP from ADP, how many ATP molecules can be produced for every molecule of glucose?Β
C6H12O6 + 6O2 β 6CO2 + 6H2O
A chemical interaction in which the products contain less free energy than the reactants is called a(n) ____ reaction.
Chapter 5 Solutions
General, Organic, and Biological Chemistry, Books a la Carte Edition (3rd Edition)
Ch. 5 - When vinegar (CH3COOH) and baking soda (NaHCO3)...Ch. 5 - In your own words, define free energy change, G....Ch. 5 - Classify the following as exothermic or...Ch. 5 - Prob. 5.4PPCh. 5 - Prob. 5.5PPCh. 5 - Classify the following as spontaneous or...Ch. 5 - Prob. 5.7PPCh. 5 - Prob. 5.8PPCh. 5 - Prob. 5.9PPCh. 5 - Prob. 5.10PP
Ch. 5 - a. How does increasing the temperature increase...Ch. 5 - a. Describe activation energy for a chemical...Ch. 5 - Why does the rate of a chemical reaction decrease...Ch. 5 - Prob. 5.14PPCh. 5 - Enzymes increase the rate of a biological chemical...Ch. 5 - Prob. 5.16PPCh. 5 - Prob. 5.17PPCh. 5 - Prob. 5.18PPCh. 5 - Categorize the following reactions as synthesis,...Ch. 5 - Categorize the following reactions as synthesis,...Ch. 5 - Prob. 5.21PPCh. 5 - Prob. 5.22PPCh. 5 - Write the products and balance the following...Ch. 5 - Prob. 5.24PPCh. 5 - Prob. 5.25PPCh. 5 - List the differences between general chemical...Ch. 5 - Are the substances shown in italics undergoing...Ch. 5 - Prob. 5.28PPCh. 5 - Prob. 5.29PPCh. 5 - Prob. 5.30PPCh. 5 - Prob. 5.31PPCh. 5 - Prob. 5.32PPCh. 5 - Prob. 5.33PPCh. 5 - Prob. 5.34PPCh. 5 - Prob. 5.35PPCh. 5 - Prob. 5.36PPCh. 5 - Prob. 5.37PPCh. 5 - Write the main product of hydration for the...Ch. 5 - Methane (a.k.a. natural gas) can react with oxygen...Ch. 5 - Prob. 5.40APCh. 5 - Which reaction occurs at a faster rate, an...Ch. 5 - Prob. 5.42APCh. 5 - Prob. 5.43APCh. 5 - Two curves for the same reaction are shown in the...Ch. 5 - Prob. 5.45APCh. 5 - Draw and label a reaction energy diagram for an...Ch. 5 - Prob. 5.47APCh. 5 - Prob. 5.48APCh. 5 - Write the products that would result from the...Ch. 5 - Prob. 5.50APCh. 5 - Prob. 5.51APCh. 5 - Prob. 5.52APCh. 5 - Prob. 5.53APCh. 5 - Prob. 5.54APCh. 5 - Prob. 5.55APCh. 5 - Identify the reactant that is oxidized and the...Ch. 5 - Prob. 5.57APCh. 5 - Write the products of the following reactions:Ch. 5 - Prob. 5.59APCh. 5 - Acetylsalicylic acid (aspirin) can be synthesized...Ch. 5 - Prob. 5.61APCh. 5 - Fill in the missing organic produce for the...Ch. 5 - Prob. 5.63APCh. 5 - Prob. 5.64APCh. 5 - How do low-carb diets work? We store glucose...Ch. 5 - Prob. 5.66CPCh. 5 - Prob. 5.67CPCh. 5 - Prob. 5.68CPCh. 5 - Prob. 5.69CPCh. 5 - Which reaction has the larger activation energy?Ch. 5 - Prob. 1IA.2QCh. 5 - A catalyst speeds up a chemical reaction by...Ch. 5 - Prob. 1IA.4QCh. 5 - Examine your sketch from question 3. Does a...Ch. 5 - Prob. 1IA.6QCh. 5 - Prob. 2IA.1QCh. 5 - Prob. 2IA.2QCh. 5 - Prob. 2IA.3QCh. 5 - One of the reactions in the data set is a single...Ch. 5 - Prob. 2IA.5QCh. 5 - Categorize the following reactions as a synthesis,...Ch. 5 - Prob. 3IA.1QCh. 5 - Prob. 3IA.2QCh. 5 - Prob. 3IA.3QCh. 5 - Prob. 3IA.4QCh. 5 - Prob. 3IA.5QCh. 5 - Prob. 1ICCh. 5 - Find out how unsaturated fats are saturated and...
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- The following equation represents a reversible decomposition: CaCO3(s)CaO(s)+CO2(g) Under what conditions will decomposition in a closed container proceed to completion so that no CaCO3 remains?arrow_forwardThe combustion of glucose is given by the reaction C6H12O6Β (s) + 6O2Β β6H2O(l)+6CO2Β (g) The heats of formation are:Β C6H12O6Β (s):-1274.5 kJ/mol;Β Β H2O(l):-285.8 kJ/mol;Β Β CO2Β (g):-393.5 kJ/mol. CalculateΒ ΞrH0Β for the combustion of glucose?arrow_forwardfor the reaction 2 Hg (l) + O2 (g) β2 HgO (s), βH = - 43 kcal/mol Does entropy increase or decrease in this process? Explain.arrow_forward
- Answer true or false to the following statements about energy diagrams and reactions. Q.) A reaction coordinate diagram is used to visualize the change in the internal energy of chemical structures that occurs during chemical reactionsarrow_forwardGive 1 example of a fruitful and unfruitful collision in your daily activities.arrow_forwardIs the following true or false? Catalysis is the acceleration of reactions and is achieved by making the products lower in energy.arrow_forward
- How can we determine AHrn for the combustion of glucose?arrow_forward5. The change in enthalpy for a certain reaction is a small, positive number. The change in entropy for this reaction is an extremely large positive number. Is this reaction exergonic or endergonic?exergonicΒ Β endogonicarrow_forwardHow would I tell how and why this reaction changes in temperature and pressure? 4CO(g) + H2O(g) CH4 (g) + 3CO2 (g) ΞHΒ°=-571.4kJarrow_forward
- 6. Calculate the heat of decomposition for this process at constant pressure and 25Β°C: CaCO3(s) β CaO(s) + CO2(g) Substance Β Β Β βHΒ°f , kJ/molCaCO3(s) Β Β Β Β Β β1206.9CaO(s) Β Β Β Β Β Β Β β635.6CO2(g) Β Β Β Β Β Β Β β393.5arrow_forwarda) As stated in question 5a, glucose (C6H12O6(s)) is a source of cellular energy. Calculate the standard free energy for the metabolism of glucose: Given ΞGΒ°C6H12O6(s) =Β -911kJ/mol; ΞGΒ°O2(g) = 0kJ/mol; ΞGΒ°CO2 = -394kJ/mol; ΞGΒ°H2O(l) = -237kJ/molC6H12O6(s) + 6O2(g) β 6CO2(g) + 6H2O(l) Β b) Cells couple the hydrolysis of adenosine triphosphate (ATP) into adenosine diphosphate (ADP) andinorganic phosphate (PO43β) to drive chemical reactions (i.e. as a source of chemical energy). The reaction is: ATP(aq) + H2O(l) β ADP(aq) + PO43β(aq)Β Calculate K for this reaction if ΞGΒ° = β30.5 kJ/mole. c) If all of the energy from glucose metabolism went into ATP synthesis from ADP and inorganicphosphate, how many molecules of ATP could be generated from each molecule of glucose?arrow_forwardConsider the complete combustion of glucose (C6H12O6) with O2 and calculate theΒ moles of CO2produced when 1.02 g ofΒ glucose is reacted withΒ 25 mL of O2Β at body temperature (37 ΒΊC) and 0.970 atm. Β C6H12O6 + 6 O2 (g)Β Β βΒ Β 6 CO2 (g) + 6Β H2O a. 0.95 b. 0.0022 c. 9.53 x 10-4 d. 6.33 x 10-2 e. 5.67 x 10-3arrow_forward
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