During lab, a student used a Mohr pipet to add the following solutions into a 25 mL volumetric flask. They calculated the final volumes added, which are recorded below. The student then followed the directions in the manual to make the stock solution. Volumes Used to Create Stock Solution Volume 0.200 M Fe(NO3)3 (mL) Volume 0.00200 M KSCN (mL) Stock Solution 9.06 mL 1.04 mL Using the stock solution above, the student made additional dilutions, with the final volumes below. Calculate the concentration of iron(III) thiocyanate ion in Standard 2. For grading purposes, report your answer in mM with four places after the decimal.
During lab, a student used a Mohr pipet to add the following solutions into a 25 mL volumetric flask. They calculated the final volumes added, which are recorded below. The student then followed the directions in the manual to make the stock solution. Volumes Used to Create Stock Solution Volume 0.200 M Fe(NO3)3 (mL) Volume 0.00200 M KSCN (mL) Stock Solution 9.06 mL 1.04 mL Using the stock solution above, the student made additional dilutions, with the final volumes below. Calculate the concentration of iron(III) thiocyanate ion in Standard 2. For grading purposes, report your answer in mM with four places after the decimal.
Chemistry: Matter and Change
1st Edition
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Chapter14: Mixtures And Solutions
Section14.2: Solution Concentration
Problem 13PP
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During lab, a student used a Mohr pipet to add the following solutions into a 25 mL volumetric flask. They calculated the final volumes added, which are recorded below. The student then followed the directions in the manual to make the stock solution.
Volumes Used to Create Stock Solution
Volume 0.200 M Fe(NO3)3 (mL) | Volume 0.00200 M KSCN (mL) | |
---|---|---|
Stock Solution | 9.06 mL | 1.04 mL |
Using the stock solution above, the student made additional dilutions, with the final volumes below. Calculate the concentration of iron(III) thiocyanate ion in Standard 2. For grading purposes, report your answer in mM with four places after the decimal.
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