ELEMENTARY PRINCIPLES OF CHEM. PROCESS.
4th Edition
ISBN: 9781119249214
Author: FELDER
Publisher: INTER WILE
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Chapter 2, Problem 2.5P
Interpretation Introduction
Interpretation:
To identify which liner is thicker.
Concept introduction:
The liners protect the disks from any kind of dust or scratches so basically a liner acts as a protecting shield for the disk. These liners are also available online so that it would be convenient for the customers to purchase the liners. Different websites used to sell different type of liners which are of unlike thickness or length.
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You have recently become interested in collecting used classic vinyl recordings. The jackets for these disks often have no liners to protect the records from dust and other sources of scratches, so you seek to purchase some liners from online vendors. Two web sites offer 12-in. inner plastic liners: site A advertises liners with a thickness of 50 microns, while the liners at site B are 3 mils thick. Which of the sites is selling the thicker liner?
Cryolite (Na3AlF6) is used in the commercial production of aluminum from ore. Cryolite itself is produced by the following reaction:
6 NaOH + Al2O3 + 12 HF → 2 Na3AlF6 + 9 H2O
A mixture containing 420.0 kg of NaOH, 128.4 kg of Al2O3, and 600.0 kg of HF is heated to 950 °C until it reacts to completion. What is the maximum mass of Na3AlF6 formed?
________kg Na3AlF6
The extraction of aluminum metal from the aluminum hydroxide found in bauxite by the Hall-Héroult process is one of the
most remarkable success stories of 19th century chemistry, turning aluminum from a rare and precious metal into the
cheap commodity it is today. In the first step, aluminum hydroxide reacts to form alumina (Al,0,) and water:
2Al(OH), (s)
Al,0; (s) + 3 H,0 (g)
-
In the second step, alumina (Al,0,) and carbon react to form aluminum and carbon dioxide:
2Al,0; (s) + 3C(s) →
4Al(s) + 3 CO, (g)
Suppose the yield of the first step is 82.% and the yield of the second step is 69.%. Calculate the mass of aluminum
hydroxide required to make 10.0 kg of aluminum.
Be sure your answer has a unit symbol, if needed, and is rounded to the correct number of significant digits.
x10
Chapter 2 Solutions
ELEMENTARY PRINCIPLES OF CHEM. PROCESS.
Ch. 2 - Prob. 2.1PCh. 2 - Prob. 2.2PCh. 2 - Prob. 2.3PCh. 2 - Prob. 2.4PCh. 2 - Prob. 2.5PCh. 2 - Prob. 2.6PCh. 2 - Prob. 2.7PCh. 2 - Prob. 2.8PCh. 2 - Prob. 2.9PCh. 2 - Prob. 2.10P
Ch. 2 - Prob. 2.11PCh. 2 - Prob. 2.12PCh. 2 - Prob. 2.13PCh. 2 - Prob. 2.14PCh. 2 - Prob. 2.15PCh. 2 - Prob. 2.16PCh. 2 - Prob. 2.17PCh. 2 - Prob. 2.18PCh. 2 - During the early part of the 20th century,...Ch. 2 - Prob. 2.20PCh. 2 - Prob. 2.21PCh. 2 - Prob. 2.22PCh. 2 - Prob. 2.23PCh. 2 - Prob. 2.24PCh. 2 - Prob. 2.25PCh. 2 - The Prandtl number, Np,, is a dimensionless group...Ch. 2 - Prob. 2.27PCh. 2 - Prob. 2.28PCh. 2 - Prob. 2.29PCh. 2 - Prob. 2.30PCh. 2 - Prob. 2.31PCh. 2 - Prob. 2.32PCh. 2 - Prob. 2.33PCh. 2 - 2.34. You arrive at your lab at 8 a.m. and add an...Ch. 2 - Prob. 2.35PCh. 2 - Prob. 2.36PCh. 2 - Prob. 2.37PCh. 2 - Prob. 2.38PCh. 2 - Prob. 2.39PCh. 2 - A hygrometer, which measures the amount of...Ch. 2 - Prob. 2.41PCh. 2 - Prob. 2.42PCh. 2 - Prob. 2.43PCh. 2 - Prob. 2.44PCh. 2 - Prob. 2.45PCh. 2 - Prob. 2.46PCh. 2 - Prob. 2.47PCh. 2 - Prob. 2.48PCh. 2 - Prob. 2.49PCh. 2 - Prob. 2.50PCh. 2 - Prob. 2.51PCh. 2 - Prob. 2.52PCh. 2 - Prob. 2.53PCh. 2 - Prob. 2.54PCh. 2 - Prob. 2.55P
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