Reagent A , the N -(1- Naphtyl) ethylenediamine solution (NNED Solution) contain
ID: 134765 • Letter: R
Question
Reagent A, the N-(1- Naphtyl) ethylenediamine solution (NNED Solution) contains 1 g L -1 NNED, as described in an earlier question.
Reagent B, the S ulfanilamide Solution, contains 10 g L Sulfanilamide , and has an HCl concentration of 2.4 M as described in an earlier question. The formula weight of HCl is 36.46 g mole-1.
Every sample is 8 mL, and shaken for 5 minutes with 0.1 g of cadmium powder prior to being mixed with 1 mL of Sulfanilamide solution and 1 mL NNED Reagent.
For this experiment, 60 samples and 5 standards were processed. The cadmium powder is insufficient to change the volume of the sample. Assume the samples have a total nitrate concentration ? 0.01%.
Given the above information, complete the waste ticket below for the chemical waste from performing Nitrate Assays in this experiment.
Remember to consider the reagents were diluted when they were mixed with the sample.
Remember to calculate percentages as mass in grams over total volume (650 mL).
Round all answers to TWO decimal place.
Hazardous Chemical Waste Principal Investigator: Dr. Haber-Bosch Department: Bioloay Solution Name: Nitrate Assay Waste Chemical: Percentaage Cadmium 0 Hydrochloric Acid 0 (1- Naphtyl) ethylenediaminee Nitrate Sulfanilamide Water Total Volume 0 0.01 % 0 298% 0.65 LExplanation / Answer
Answer:
Based on the given information:
Cadmium Concentration determination (Percentage mass in 0.65L):
Hydrochloric acid Concentration determination:
NNED Concentration determination:
Sulfaniliamide Concentration determination:
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