EBK CHEMISTRY
8th Edition
ISBN: 9780135216972
Author: Robinson
Publisher: PEARSON CO
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Chapter 22, Problem 22.102SP
Carbon is an essential element in the molecules on which life is based. Would silicon be equally satisfactory? Explain.
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QUESTION: Fill in the answers in the empty green boxes regarding 'Question 5: Calculating standard error of regression'
*The images of the data showing 'coefficients for the standard curve' have been provided
Using the Nernst equation to calculate nonstandard cell voltage
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Your answer is wrong. In addition to checking your math, check that you used the right data and DID NOT round any intermediate calculations.
A galvanic cell at a temperature of 25.0 °C is powered by the following redox reaction:
2+
2+
Sn²+ Ba(s)
(aq) + Ba (s) Sn (s) + Ba²+ (aq)
→>>
Suppose the cell is prepared with 6.10 M Sn
2+
2+
in one half-cell and 6.62 M Ba
in the other.
Calculate the cell voltage under these conditions. Round your answer to 3 significant digits.
1.71 V
☐ x10
☑
5
0/5
?
00.
18
Ar
Question: Find both the b (gradient) and a (y-intercept) value from the list of data below:
(x1 -x̄)
370.5
(y1 - ȳ)
5.240
(x2 - x̄)
142.5
(y2 - ȳ)
2.004
(x3 - x̄)
28.5
(y3 - ȳ)
0.390
(x4 - x̄)
-85.5
(y4 - ȳ)
-1.231
(x5 - x̄)
-199.5
(y5 - ȳ)
-2.829
(x6 - x̄)
-256.5
(y6 - ȳ)
-3.575
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