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...
Related questions
Question
![D/days/845570/assessments/271356/varlants/271338) (ake/9
All conversion factors are equivalent to one. For example, the conversion factor given above is equivalent
to one because the numerator (28.01 g CO) and denominator (1 mol CO) represent the same amount of
CO. The "mol CO" unit is canceled, leaving an answer unit of grams.
Question
How do you solve problems in stoichiometry?
Observe
New question
The first question is: "How many moles of carbon
How many moles of carbon monoxide (CO) are
required to react completely with 1.75 moles of iron
(III) oxide (Fe203)?
monoxide (CO) are required to react completely
Fe,O
with 1.75 moles of iron (III) oxide (
23)?" (If this
is not the question you see, press New question
until it appears.)
SHORT ANSWER
Question 8
What unit is given in the question? What quantity is asked for?
Answer in complete sentences.
BI U
ఠరఠం రరరం•ంంర రర ర ర
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10 of 15 Total Questions Answered
10:30 PM
2/10/2021](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc4e7240e-3d5b-47ca-8ba0-cf0ba4a1dc53%2F19672cb9-4720-4b3c-b42a-bfd55b36e8c5%2Fai7x2cn_processed.jpeg&w=3840&q=75)
Transcribed Image Text:D/days/845570/assessments/271356/varlants/271338) (ake/9
All conversion factors are equivalent to one. For example, the conversion factor given above is equivalent
to one because the numerator (28.01 g CO) and denominator (1 mol CO) represent the same amount of
CO. The "mol CO" unit is canceled, leaving an answer unit of grams.
Question
How do you solve problems in stoichiometry?
Observe
New question
The first question is: "How many moles of carbon
How many moles of carbon monoxide (CO) are
required to react completely with 1.75 moles of iron
(III) oxide (Fe203)?
monoxide (CO) are required to react completely
Fe,O
with 1.75 moles of iron (III) oxide (
23)?" (If this
is not the question you see, press New question
until it appears.)
SHORT ANSWER
Question 8
What unit is given in the question? What quantity is asked for?
Answer in complete sentences.
BI U
ఠరఠం రరరం•ంంర రర ర ర
All Changes Saved
Continue
>
10 of 15 Total Questions Answered
10:30 PM
2/10/2021
![Activity B: Canceling Units
Get the Gizmo Ready
Check that the equation in the Gizmo is still:
New equation
Fe O, +3CO→2F +3CO,
Fe203 (s) + 3CO (g) 2Fe (s) + 3CO2 (g)
New question
While solving problems in stoichiometry, it is useful to pay attention to the units of the answer. The process
of comparing units is called dimensional analysis. A common technique involves using conversion factors
to convert from one unit to another. Units that appear in the numerator and denominator of a fraction can
be canceled out.
For example, converting 2 moles of carbon monoxide to grams involves multiplying by a conversion factor:
28.01 g CO
2 mot CO x
= 56.02 g CO
1 mot CO](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc4e7240e-3d5b-47ca-8ba0-cf0ba4a1dc53%2F19672cb9-4720-4b3c-b42a-bfd55b36e8c5%2Fgiuzsdp_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Activity B: Canceling Units
Get the Gizmo Ready
Check that the equation in the Gizmo is still:
New equation
Fe O, +3CO→2F +3CO,
Fe203 (s) + 3CO (g) 2Fe (s) + 3CO2 (g)
New question
While solving problems in stoichiometry, it is useful to pay attention to the units of the answer. The process
of comparing units is called dimensional analysis. A common technique involves using conversion factors
to convert from one unit to another. Units that appear in the numerator and denominator of a fraction can
be canceled out.
For example, converting 2 moles of carbon monoxide to grams involves multiplying by a conversion factor:
28.01 g CO
2 mot CO x
= 56.02 g CO
1 mot CO
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