A student made HPLC analysis to find unknown concentration of Vitamin C sample. She prepared 800 ppm reference solution with Vitamin C. She took 1 mL from this solution into 25 mL volumetric flask, completed with solvent, filtered, and analyzed. She found peak area as 172,50 mAu*s. Then she analyzed unknown concentration sample and she found peak area as 134,76 mAu*s. What is the concentration of unknown sample? 624.97 ppm 62.49 ppm 29.06 ppm 25.00 ppm

A student made HPLC analysis to find unknown concentration of Vitamin C sample. She prepared 800 ppm reference solution with Vitamin C. She took 1 mL from this solution into 25 mL volumetric flask, completed with solvent, filtered, and analyzed. She found peak area as 172,50 mAus. Then she analyzed unknown concentration sample and she found peak area as 134,76 mAus. What is the concentration of unknown sample? 624.97 ppm 62.49 ppm 29.06 ppm 25.00 ppm

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...

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beaded) SIGNATURE Print Staff Name SH w ти department HOLD VOLUME Updat SPEAKER GHI4 $7 PORS TONE a-A NEX OPERO CELL A MIC Type here to search Direct Care CELL B SEN CHROME = ve to Todd CELL CHARGE URL In address bar: odd. my.gov/pm/ehr/training Name: DirectCare017@email.com OPWDDTRAINING Password: test@1234 O NAMING AND DRAWING ORGANIC MOLECULES Interpreting the skeletal structure of a neutral organic molecule Answer the questions in the table below about this molecule: H 017 What is this molecule's chemical formula? Note: write the simplest molecular chemical formula, in which each element symbol appears only once. How many CH3, CH2, and CH groups are in this molecule? Explanation Check Kim Stampone (585) 451-7403 - Social Worker for EH starting tomorrow Nightly Report Distribution List: Perry Vandunk Katie Metz April Rowell TTL DA3 DA3 ly King St Bank St Manle Ave 0 CH, [сн, сн URC Codes for GEN/ORL Homes: 9968 6550 27 0168 00 6119 IdH X 5 3/5 Jessica V ? 000 Ar 8: K Ⓒ2023 McGraw…
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