Fundamentals of Analytical Chemistry
9th Edition
ISBN: 9781285607191
Author: Skoog
Publisher: Cengage Learning
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The "down arrow" on the far left of the toolbar directly above the space for your answer will take you to the subscript "x2" and superscript "x2" options. If you can't make these options work, then write subscripts on the same line and enclose superscripts in parentheses on the same line. For example MnO4(-) would be accepted as MnO4-. Use --> (dash, dash, greater than) for your arrow. Do NOT use the equal sign "=".
Write and balance the equation representing what happens when Mg(NO3)2(s), a strong electrolyte, dissolves in water. Include all physical states.
The spectroscopic data in the table is generated with five solutions of known concentration.
Concentration (M)
0.0133
m=
0.0266
0.0532
0.106
0.213
Absorbance
0.1271
What is the intercept of the linear regression line?
0.08531
0.5388
1.069
Use a spreadsheet program, such as Microsoft Excel, to graph the data points and determine the equation of the best-fit line.
1.954
What is the slope of the linear regression line formed by these points?
M-1
on the last part of the problem where it is x=( 10-10 x 0.25)1/2=5x10-6 M
When I plug that into my calculator I get 1.25 an not 5x10-6 what am I doing wrong
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