Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Chapter 1, Problem 110AE
The chemist in Example 1.14 did some further experiments. She found that the pipet used to measure the volume of the liquid is accurate to ±0.03 cm3. The mass measurement is accurate to ±0.002 g. Are these measurements sufficiently precise for the chemist to distinguish between isopropyl alcohol and ethanol?
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QUESTION: Find the standard deviation for the 4 different groups
5.298
3.977
223.4
148.7
5.38
4.24
353.7
278.2
5.033
4.044
334.6
268.7
4.706
3.621
305.6
234.4
4.816
3.728
340.0
262.7
4.828
4.496
304.3
283.2
4.993
3.865
244.7
143.6
STDEV =
STDEV =
STDEV =
STDEV =
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
Try Again
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
Chapter 1 Solutions
Chemistry
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