In order to dispose of chemical waste, the VCU Environmental Health and Safety regulations state that a waste ticket must be filled out listing all chemical components as a percentage. This requires the use of conversion factors to convert the concentration of compounds into a percentage and list them on the waste ticket. When filling out waste tickets, each chemical is listed as less than or equal to it's percentage. Water, or whatever solvent is used, is listed as grater than or equal to the remaining percentage. Use the information below, along with the information given in the prior questions for making Reagents A & B for nitrate assays to correctly fill out the waste ticket below.
In order to dispose of chemical waste, the VCU Environmental Health and Safety regulations state that a waste ticket must be filled out listing all chemical components as a percentage.
This requires the use of conversion factors to convert the concentration of compounds into a percentage and list them on the waste ticket. When filling out waste tickets, each chemical is listed as less than or equal to it's percentage. Water, or whatever solvent is used, is listed as grater than or equal to the remaining percentage.
Use the information below, along with the information given in the prior questions for making Reagents A & B for nitrate assays to correctly fill out the waste ticket below.
Reagent A: The N-(1-Naphtyl) ethylenediamine solution (NNED solution) contains 1g/L NNED, as described in an earlier question.
Reagent B: The Sulfanilamide solution contains 10g/L Sulfanilamide and has a HCL concentration of 2.4M as described in an earlier question. The formula weight of HCL is 36.48g/mole.
Every sample is 8mL and shaken for 5 minutes with 0.1g of cadmium powder prior to being mixed with 1mL of Sulfanilamide solution and 1mL 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 of less than or equal to 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. Also remember to calculate percentages as mass in grams over total volume (650mL).
Round all answers to 2 decimal places when filling the chart
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