Introductory Chemistry, Books a la Carte Edition (6th Edition)
6th Edition
ISBN: 9780134564074
Author: Nivaldo J. Tro
Publisher: PEARSON
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Chapter 12, Problem 10E
Why does a glass of water evaporate more slowly in the glass than if you spilled the same amount of water on a table?
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The electrode balance potential is -0.118 V and the interface potential difference
is +5 mV. The overvoltage n will be 0.005 - (-0.118) = 0.123 V. Is it correct?
In the electrode Pt, H2(1 atm) | H+(a=1), if the electrode balance potential is -0.118 V and the interface potential difference is +5 mV. The current voltage will be 0.005 - (-0.118) = 0.123 V ¿Correcto?
In the electrode Pt, H2(1 atm) | H+(a=1) at 298K is 0.79 mA cm-2. If the balance potential of the electrode is -0.118 V and the potential difference of the interface is +5 mV. Determine its potential.
Chapter 12 Solutions
Introductory Chemistry, Books a la Carte Edition (6th Edition)
Ch. 12 - The first diagram shown here represents liquid...Ch. 12 - Prob. 2SAQCh. 12 - Prob. 3SAQCh. 12 - How many 20.0-g ice cubes are required to absorb...Ch. 12 - Prob. 5SAQCh. 12 - Prob. 6SAQCh. 12 - Prob. 7SAQCh. 12 - Prob. 8SAQCh. 12 - Prob. 9SAQCh. 12 - Prob. 10SAQ
Ch. 12 - Prob. 1ECh. 12 - Prob. 2ECh. 12 - What determines whether a substance is a solid,...Ch. 12 - 4. What are the properties of liquids? Explain the...Ch. 12 - 5. What are the properties of solids? Explain the...Ch. 12 - Prob. 6ECh. 12 - Prob. 7ECh. 12 - Prob. 8ECh. 12 - Prob. 9ECh. 12 - Why does a glass of water evaporate more slowly in...Ch. 12 - Prob. 11ECh. 12 - Prob. 12ECh. 12 - 13. Acetone evaporates more quickly than water at...Ch. 12 - Prob. 14ECh. 12 - Prob. 15ECh. 12 - Prob. 16ECh. 12 - 17. Explain why a steam burn from gaseous water at...Ch. 12 - Prob. 18ECh. 12 - Prob. 19ECh. 12 - Prob. 20ECh. 12 - Is the melting of ice endothermic or exothermic?...Ch. 12 - 22. Is the boiling of water endothermic or...Ch. 12 - Prob. 23ECh. 12 - Prob. 24ECh. 12 - 25. What is hydrogen bonding? How can you tell...Ch. 12 - Prob. 26ECh. 12 - Prob. 27ECh. 12 - Prob. 28ECh. 12 - Prob. 29ECh. 12 - Prob. 30ECh. 12 - Prob. 31ECh. 12 - 32. What is an atomic solid? What are the...Ch. 12 - Prob. 33ECh. 12 - Prob. 34ECh. 12 - Prob. 35ECh. 12 - Two samples of pure water of equal volume are put...Ch. 12 - Prob. 37ECh. 12 - Spilling water over your skin on a hot day will...Ch. 12 - Prob. 39ECh. 12 - Water is put into a beaker and heated with a...Ch. 12 - 41. Which causes a more severe burn: spilling 0.50...Ch. 12 - 42. The nightly winter temperature drop in a...Ch. 12 - Prob. 43ECh. 12 - Prob. 44ECh. 12 - 45. An ice chest is filled with 3.5 kg of ice at...Ch. 12 - Why does 50 g of water initially at 0 C warm more...Ch. 12 - In Denver, Colorado, water boils at 95. C....Ch. 12 - Prob. 48ECh. 12 - 49. How much heat is required to vaporize 33.8 g...Ch. 12 - How much heat is required to vaporize 43.9 g of...Ch. 12 - How much heat does your body lose when 2.8 g of...Ch. 12 - How much heat does your body lose when 4.86 g of...Ch. 12 - How much heat is emitted when 4.25 g of water...Ch. 12 - Prob. 54ECh. 12 - 55. The human body obtains 835 kJ of energy from a...Ch. 12 - 56. The human body obtains 1078 kJ from a candy...Ch. 12 - How much heat is required to melt 37.4 g of ice at...Ch. 12 - 58. How much heat is required to melt 23.9 g of...Ch. 12 - How much energy is released when 34.2 g of water...Ch. 12 - How much energy is released when 2.55 kg of...Ch. 12 - 61. How much heat is required to convert 2.55 g of...Ch. 12 - 62. How much heat is required to convert 5.88 g of...Ch. 12 - Prob. 63ECh. 12 - Prob. 64ECh. 12 - 65. What kinds of intermolecular forces are...Ch. 12 - Prob. 66ECh. 12 - Prob. 67ECh. 12 - What kinds of intermolecular forces are present in...Ch. 12 - Which substance has the highest boiling point?...Ch. 12 - Prob. 70ECh. 12 - One of these two substances is a liquid at room...Ch. 12 - Prob. 72ECh. 12 - 73. A flask containing a mixture of and is...Ch. 12 - 74. Explain why is a liquid at room temperature...Ch. 12 - Are CH3CH2CH2CH2CH3 and H2O miscible?Ch. 12 - Prob. 76ECh. 12 - Prob. 77ECh. 12 - 78. Determine whether a homogeneous solution forms...Ch. 12 - 79. Identify each solid as molecular, ionic, or...Ch. 12 - Prob. 80ECh. 12 - Identify each solid as molecular, ionic, or...Ch. 12 - Identify each solid as molecular, ionic, or...Ch. 12 - 83. Which solid has the highest melting point?...Ch. 12 - 84. Which solid has the highest melting point?...Ch. 12 - 85. For each pair of solids, determine which solid...Ch. 12 - For each pair of solids, determine which solid has...Ch. 12 - 87. List these substances in order of increasing...Ch. 12 - 88. List these substances in order of decreasing...Ch. 12 - 89. Ice actually has negative caloric content. How...Ch. 12 - Prob. 90ECh. 12 - An 8.5-g ice cube is placed into 255 g of water....Ch. 12 - A 14.7-g ice cube is placed into 324 g of water....Ch. 12 - 93. How much ice in grams would have to melt to...Ch. 12 - Prob. 94ECh. 12 - Prob. 95ECh. 12 - Prob. 96ECh. 12 - Draw a Lewis structure for each molecule and...Ch. 12 - Draw a Lewis structure for each molecule and...Ch. 12 - 99. The melting point of ionic solids depends on...Ch. 12 - Draw ionic Lewis structures for KF and CaO. Use...Ch. 12 - Prob. 101ECh. 12 - Prob. 102ECh. 12 - An ice cube at 0.00 C with a mass of 23.5 g is...Ch. 12 - Prob. 104ECh. 12 - Prob. 105ECh. 12 - Prob. 106ECh. 12 - Prob. 107ECh. 12 - Prob. 108ECh. 12 - Prob. 109QGWCh. 12 - Prob. 110QGWCh. 12 - Prob. 111QGWCh. 12 - Prob. 112QGWCh. 12 - Prob. 113DIA
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- In one electrode: Pt, H2(1 atm) | H+(a=1), the interchange current density at 298K is 0.79 mA·cm-2. If the voltage difference of the interface is +5 mV. What will be the correct intensity at pH = 2?. Maximum transfer voltage and beta = 0.5.arrow_forwardIn a Pt electrode, H2(1 atm) | H+(a=1), the interchange current density of an electrode is 0.79 mA cm-2. ¿Qué corriente flow across the electrode of área 5 cm2 when the difference in potential of the interface is +5 mV?.arrow_forwardIf the current voltage is n = 0.14 V, indicate which of the 2 voltage formulas of the ley of Tafel must be applied i a a) == exp (1-B). xp[(1 - ß³): Fn Fn a b) == exp B RT RTarrow_forward
- If the current voltage is n = 0.14 V. Indicate which of the 2 formulas must be applied a) = a T = i exp[(1 - p) F Fn Fn b) i==exp B RTarrow_forwardTopic: Photochemistry and Photophysics of Supramoleculesarrow_forwardTwo cations that exchange an electron in an interface, the exchange density is worth 1.39 mA/cm2 and the current density is worth 15 mA/cm2 at 25°C. If the overvoltage is 0.14 V, calculate the reaction rate and symmetry factor. Data: R = 8,314 J mol-1 k-1: F = 96500 Carrow_forward
- With the help of the Tafel line, it is estimated that the interchange density of the VO2+/VO2+ system on the carbon paper has a value of 3 mA cm-2. Calculate a) the current density if the voltage has a value of 1.6 mV and the temperature is 25°C. b) the beta value of the anódico process if the Tafel pendulum is 0.6 V at 25°C. Data: R = 8.314 JK-1mol-1, y F = 96485 C mol-1.arrow_forwardApply the NANSTE law to the MnO4- + 8H+ + 5e- ⇄ Mn2+ + 4H2Oarrow_forwardIn the Nernst Law, how much is RT / F?arrow_forward
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