GIVEN: - 500mg of ascorbic acid - 2L of distilled water - 7.5% m/v (this is the stock solution) To answer: 1. Give a solution to get the given stock solution. 2. Give a full solution when it will be diluted to 5.9% and the volume is 75mL MAKE SURE THAT WHEN THE REQUIRED STOCK SOLUTION IN ML AND REQUIRED ML IN THE DILUTION WILL TOTAL TO THE NEW VOLUME WHICH IS 75mL

GIVEN: - 500mg of ascorbic acid - 2L of distilled water - 7.5% m/v (this is the stock solution) To answer: 1. Give a solution to get the given stock solution. 2. Give a full solution when it will be diluted to 5.9% and the volume is 75mL MAKE SURE THAT WHEN THE REQUIRED STOCK SOLUTION IN ML AND REQUIRED ML IN THE DILUTION WILL TOTAL TO THE NEW VOLUME WHICH IS 75mL

Chemical Principles in the Laboratory

11th Edition

ISBN:9781305264434

Author:Emil Slowinski, Wayne C. Wolsey, Robert Rossi

Publisher:Emil Slowinski, Wayne C. Wolsey, Robert Rossi

Chapter3: Resolution Of Matter Into Pure Substances, Ii. Fractional Crystallization

Section: Chapter Questions

Problem 1ASA: Using Figure 3.1, determine a. the number of grams of CuSO45H2O that will dissolve in 100g of H2O at...

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Submit a clean, dry, and properly labeled 50-mL reagent bottle for your unknown solution. Pipet 20.00 mL of the sample in 250-mL Erlenmeyer flask. Add 5 mL of buffer and 5 drops of indicator. Titrate the solution until it turns light blue. If the titration consumes more than 50 mL of the titrant, dilute the sample accordingly. Compute for ppm of CaCO3 using the following table. Mean Molarity = 2.487 x 10^-3 MBlank correction = 0.015 Formula = V (mL) titrant x Mean Molarity of Titrant x Molecular weight of CaCO3 x 1/V (L) sample
GIVEN: - 500mg of ascorbic acid - 2L of distilled water - 7.5% m/v (this is the stock solution) To answer: 1. Give a solution to get the given stock solution. 2. Give a full solution when it will be diluted to 5.9% and the volume is 75mL MAKE SURE THAT WHEN THE REQUIRED STOCK SOLUTION IN ML AND REQUIRED ML IN THE DILUTION WILL TOTAL TO THE NEW VOLUME WHICH IS 75mL (ALSO GIVE A DETAILED COMPUTATION, THANK YOU!)
What is the concentration in units of grams of dye per liter of solution ,of the dilute dye solution that is produced as follows? transfer 19.53 ml of stick solution (6.10g/L) to a 200.0Ml volumetric flask and dilute to the 200 ml line with deionized water. Correct number of significant figs
PLEASE ANSWER ONLY NUMBERS 4 AND 5 Shan wanted to extract 3.12g of a new compound from 150mL of water using chloroform. She determined that the solubility of the compound is 0.019g/L and 0.276g/L in water and in chloroform, respectively. Determine: Kd value of the compound between chloroform and water. Amount of the compound that would be extracted if Shan performed a one-step extraction using 75.0mL of chloroform Amount of the compound that would be extracted after the first step if Shan performed a two-step extraction with 37.5mL of chloroform each Amount of the compound that would be extracted after the second step Percent efficiency of the two-step extraction compared to the one-step extraction
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