Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question
What are errors that could cause one of your mass percentage to be too high?
![1. What are three errors that could cause one of your mass percentages to be too
high?
nwonu
2. What two errors could cause one of your mass percentages to be too low?
- Why did you do three separate additions of water with the NaCl portion of the
experiment? How was that better than one wash? Would six washes be better
than three? Explain.
endeer reis elomsa bna
1onelenoched
muinonnAto san
slamse ort
Explain what you would do in the lab to make 234 grams of a heterogeneous
mixture that contains 22% salt, 46% sand, and the rest iron fillings. Start with the
pure chemicals and using both words and math explain how you would create
Tane 51.485
your maxture. 62%
Ican fillin9S
Ll00- (22 +46) ]%
32% and add M4
Of Salt in misture s 234 g x 2 =51.48
Sand in mixture=2345*46
iling-234g* 32
fillings and
of Sand. Min
X.
100 1107.649)
14.889
100
mikture
Calculate the percent by mass of each element in the following compounds to
one decimal place.
a. C12H22011](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5131a888-1b97-4c4c-9217-c9f8fa0ea515%2F7849386b-94bb-4b6c-90d1-9b91c6fd9a33%2Fddx739p_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1. What are three errors that could cause one of your mass percentages to be too
high?
nwonu
2. What two errors could cause one of your mass percentages to be too low?
- Why did you do three separate additions of water with the NaCl portion of the
experiment? How was that better than one wash? Would six washes be better
than three? Explain.
endeer reis elomsa bna
1onelenoched
muinonnAto san
slamse ort
Explain what you would do in the lab to make 234 grams of a heterogeneous
mixture that contains 22% salt, 46% sand, and the rest iron fillings. Start with the
pure chemicals and using both words and math explain how you would create
Tane 51.485
your maxture. 62%
Ican fillin9S
Ll00- (22 +46) ]%
32% and add M4
Of Salt in misture s 234 g x 2 =51.48
Sand in mixture=2345*46
iling-234g* 32
fillings and
of Sand. Min
X.
100 1107.649)
14.889
100
mikture
Calculate the percent by mass of each element in the following compounds to
one decimal place.
a. C12H22011
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