EBK GENERAL ORGANIC+BIOLOGICAL CHEM.
3rd Edition
ISBN: 9780134161938
Author: FROST
Publisher: PEARSON CO
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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:
C2H5OH(ℓ) + 3 O2(g) → 2 CO2(g) + 3 H2O(ℓ) ∆Ho = -1367.5
molar masses (g/mol): C2H5OH - 46.07 CO2 - 44.01
Indicate the 3 statements about the ideal combustion of ethanol that are true by checking the box in front of each true statement.
The reaction is endothermic.
The reaction is exothermic.
There is more chemical energy stored in the products than in the reactants.
When 50.0 g of ethanol combusts, 47.8 g of carbon dioxide are formed.
When 50.0 g of ethanol combusts, 1480 kJ are released.
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, ΔG∘=-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?
C6H12O6 + 6O2 → 6CO2 + 6H2O
A chemical interaction in which the products contain less free energy than the reactants is called a(n) ____ reaction.
Chapter 5 Solutions
EBK GENERAL ORGANIC+BIOLOGICAL CHEM.
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 C6H12O6 (s) + 6O2 →6H2O(l)+6CO2 (g) The heats of formation are: C6H12O6 (s):-1274.5 kJ/mol; H2O(l):-285.8 kJ/mol; CO2 (g):-393.5 kJ/mol. Calculate ΔrH0 for the combustion of glucose?arrow_forwardfor the reaction 2 Hg (l) + O2 (g) →2 HgO (s), ∆H = - 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?exergonic endogonicarrow_forwardHow would I tell how and why this reaction changes in temperature and pressure? 4CO(g) + H2O(g) CH4 (g) + 3CO2 (g) ΔH°=-571.4kJarrow_forward
- 6. Calculate the heat of decomposition for this process at constant pressure and 25°C: CaCO3(s) → CaO(s) + CO2(g) Substance ∆H°f , kJ/molCaCO3(s) –1206.9CaO(s) –635.6CO2(g) –393.5arrow_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 ΔG°C6H12O6(s) = -911kJ/mol; ΔG°O2(g) = 0kJ/mol; ΔG°CO2 = -394kJ/mol; ΔG°H2O(l) = -237kJ/molC6H12O6(s) + 6O2(g) ➝ 6CO2(g) + 6H2O(l) b) Cells couple the hydrolysis of adenosine triphosphate (ATP) into adenosine diphosphate (ADP) andinorganic phosphate (PO43–) to drive chemical reactions (i.e. as a source of chemical energy). The reaction is: ATP(aq) + H2O(l) ➝ ADP(aq) + PO43–(aq) Calculate K for this reaction if ΔG° = –30.5 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 the moles of CO2produced when 1.02 g of glucose is reacted with 25 mL of O2 at body temperature (37 ºC) and 0.970 atm. C6H12O6 + 6 O2 (g) → 6 CO2 (g) + 6 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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