EBK ELEMENTARY PRINCIPLES OF CHEMICAL P
4th Edition
ISBN: 9781119192107
Author: BULLARD
Publisher: JOHN WILEY+SONS,INC.-CONSIGNMENT
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Question
Chapter 3, Problem 3.7P
Interpretation Introduction
Interpretation:
The required volume of the tank to store the water and the weight of the water when tank is full should be calculated.
Concept introduction:
In Arizona, the annual rainfall is 14 inches. A roof of 1967 square feet is built in way, so it can capture the 56% of rain water fall on it. Assume that captured water is not utilized for the entire year.
Units can be converted as follows,
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A construction team gives an estimate of three months to repave a large stretch of a very busy road with their core crew of 9 people. The government responds that it is too much of an inconvenience to have this busy road obstructed for three months, so the job must be completed in one month.
If the relationship between construction time and crew members is inversely proportional, how many crew members does the construction team need if they are to complete the job in one month?
Express your answer as an integer.
II.
BOILING POINT ELEVATION:
The temperature of a boiling 50 mL of distilled water in an Erlenmeyer flask with a small
flame was taken to be 98°C. The bulb of the thermometer must not touch the bottom or sides
of the Erlenmeyer flask.
In another Erlenmeyer flask, 2.83 grams of urea is dissolved in 10 grams of distilled water. The
solution was let to boil gently and its boiling point was recorded to be 101°C.
DATA AND RESULTS: (Show all pertinent computations on the space provided if applicable.
Answers with no computation will not be considered.)
Mass of urea in grams
Mass of water in grams
Boiling point of distilled water in degrees
Celsius
Boiling point of urea solution in degrees
Celsius
Molecular weight of urea in g/mol
(experimental)
Molecular weight of urea in g/mol
(calculated)
Percent Error of Molecular weights of urea
Change in boiling point
SOLUTION/S:
A garage manager must determine the number of
metal ball bearings (BBs) in a stock container by mass
measurements. He counts out 5 BBs and finds their
total mass to be 1.9 g. He also finds the total mass
of the stock container and the BBs to be 239.3 g and
the mass of an identical, empty stock container to
be 115.8 g. The store manager then uses his data to
calculate the number of BBs in the stock container:
Average mass of one BB = 1.9/5 = 0.4 g
Mass of BBs in container = 239.3 g - 115.8 g = 123.50 g
Number of BBs in container = 123.50/0.4 g= 300 BBs
(a) Evaluate the manager’s calculations with regard to
significant digits. If necessary, rewrite any steps,
recalculating with the adjusted quantities. For
any step that you have to rewrite, explain why the
manager’s calculation is in error.
(b) Should the manager regard the answer to the
calculation in (a) as a perfect measure of the
number of ball bearings in the container?
(c) How could the manager have changed his
procedure to…
Chapter 3 Solutions
EBK ELEMENTARY PRINCIPLES OF CHEMICAL P
Ch. 3 - Perform the following estimations without using a...Ch. 3 - Prob. 3.2PCh. 3 - Prob. 3.3PCh. 3 - Prob. 3.4PCh. 3 - Prob. 3.5PCh. 3 - Prob. 3.6PCh. 3 - Prob. 3.7PCh. 3 - Prob. 3.8PCh. 3 - Prob. 3.9PCh. 3 - A rectangular block of solid carbon (graphite)...
Ch. 3 - Prob. 3.11PCh. 3 - Prob. 3.12PCh. 3 - Prob. 3.13PCh. 3 - Prob. 3.14PCh. 3 - Prob. 3.15PCh. 3 - 3.16. In April 2010, the worst oil spill ever...Ch. 3 - Prob. 3.17PCh. 3 - The following data have been obtained for the...Ch. 3 - Prob. 3.19PCh. 3 - Prob. 3.20PCh. 3 - Prob. 3.21PCh. 3 - A mixture of methanol and propyl acetate contains...Ch. 3 - The feed to an ammonia synthesis reactor contains...Ch. 3 - Prob. 3.24PCh. 3 - A mixture is 10.0 molc% methyl alcohol, 75.0 mole%...Ch. 3 - Certain solid substances, known as hydrated...Ch. 3 - Prob. 3.27PCh. 3 - Prob. 3.28PCh. 3 - Prob. 3.29PCh. 3 - Prob. 3.30PCh. 3 - Prob. 3.31PCh. 3 - Prob. 3.32PCh. 3 - Prob. 3.33PCh. 3 - Prob. 3.34PCh. 3 - Prob. 3.35PCh. 3 - Prob. 3.36PCh. 3 - Prob. 3.37PCh. 3 - Prob. 3.38PCh. 3 - Prob. 3.39PCh. 3 - Prob. 3.40PCh. 3 - Prob. 3.41PCh. 3 - Prob. 3.42PCh. 3 - Prob. 3.43PCh. 3 - Prob. 3.44PCh. 3 - Prob. 3.45PCh. 3 - Prob. 3.46PCh. 3 - In the movie, Willy Wonka and the Chocolate...Ch. 3 - Prob. 3.48PCh. 3 - Prob. 3.49PCh. 3 - Prob. 3.50PCh. 3 - Prob. 3.51PCh. 3 - Prob. 3.52PCh. 3 - Prob. 3.53PCh. 3 - Prob. 3.54PCh. 3 - Prob. 3.55PCh. 3 - Prob. 3.56PCh. 3 - Prob. 3.57PCh. 3 - Prob. 3.58PCh. 3 - Prob. 3.59PCh. 3 - Prob. 3.60PCh. 3 - Prob. 3.61PCh. 3 - Prob. 3.62PCh. 3 - Convert the temperatures in Parts (a) and (b) and...Ch. 3 - Prob. 3.64PCh. 3 - Prob. 3.65PCh. 3 - Prob. 3.66PCh. 3 - Prob. 3.67PCh. 3 - Prob. 3.68PCh. 3 - Prob. 3.69P
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