**Question 25 of 30**To find the percent of vitamin C by mass in a tablet, a titration is performed using Potassium hydrogen phthalate (KHP, molar mass = 204.22 g/mol) as the primary standard. KHP has one acidic hydrogen. In the experiment, 31.55 mL of NaOH solution is required to titrate (react exactly with) 0.750 g of KHP. This standard solution is then used to determine the amount of ascorbic acid in a 500.0 mg tablet of vitamin C. Ascorbic acid (C₆H₈O₆, molar mass = 176.12 g/mol) also has one acidic hydrogen and is usually mixed with filler in tablets. The titration of ascorbic acid requires 19.74 mL of the NaOH solution for a 500.0 mg tablet.**Task:** Calculate the percent vitamin C by mass in the tablet. **Input Field:** [ % ]**Numeric Keypad Instructions:**- Use the keypad to enter the answer.- To enter a decimal, use the "." key.- For negative numbers, use the "+/-" key.- Press "C" to clear the input.- Use "x 10 □" for scientific notation if needed.**Additional Resources:** Tap here or pull up as needed for further guidance. **Titration of NaOH Solution Using KHP**In this laboratory procedure, you prepare a standard sodium hydroxide (NaOH) solution using potassium hydrogen phthalate (KHC₈H₄O₄), abbreviated as KHP, as the primary standard. KHP has a molar mass of 204.22 g/mol and contains one acidic hydrogen atom. **Titration Process:**- **Preparation with KHP:** - To titrate 0.750 g of KHP, it required 31.55 mL of the NaOH solution to achieve a complete reaction. - **Analysis of Ascorbic Acid:** - This standardized NaOH solution is then utilized to determine the quantity of ascorbic acid in a 500.0 mg tablet of vitamin C. - Ascorbic acid (HC₆H₈O₆) has a molar mass of 176.12 g/mol and similarly has one acidic hydrogen atom. It is often mixed with fillers in tablet preparation. - For this reaction, 19.74 mL of NaOH is necessary to exactly react with the ascorbic acid in the tablet.This procedure exemplifies how titration can be used to standardize a solution and then use that solution to quantify the concentration of an acidic substance in a given sample.

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Answered: the ascorbic acid found in one 500.0 mg…

Science

Chemistry

the ascorbic acid found in one 500.0 mg tablet. What is the percent vitamin C by mass in the tablet?

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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