Balance the following reaction, show all work and changes in oxidation states (Fe and N only). Iron reduction (Fe2+ to Fe(OH)) with nitrite (NO₂) oxidation to nitrate (NO3) ●
Balance the following reaction, show all work and changes in oxidation states (Fe and N only). Iron reduction (Fe2+ to Fe(OH)) with nitrite (NO₂) oxidation to nitrate (NO3) ●
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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#3
![Rank the following in terms of how simple they are to obtain. Order the items from the most
simple, to the most complex/time consuming. Which is most meaningful for environmental
engineers and why?
COD
ThoD
. BOD
●
The following test results were obtained for a wastewater sample take at an industrial facility. All
the tests were performed using a sample size of 0.2 L. Determine the total solids, total volatile
solids, total fixed solids, total suspended solids, volatile suspended solids, and fixed suspended
solids concentrations in mg/L.
Tare mass of Whatman GF/C filter = 1.5258 g
Mass of Whatman GF/C filter plus reside after drying at 105°C = 1.5592 g
Mass of Whatman GF/C filter plus residue after ignition at 550°C = 1.5411 g
Tare mass of evaporation dish = 52.6289 g
Mass of evaporating dish plus residue after evaporation at 105°C = 52.7053 g
Mass of evaporating dish plus residue after ignition at 550°C = 52.6699 g
Balance the following reaction, show all work and changes in oxidation states (Fe and N only).
Iron reduction (Fe2+ to Fe(OH)) with nitrite (NO₂) oxidation to nitrate (NO3)
Find the theoretical oxygen demand for the 30 mg/L of methanol (CH³OH). The products of the
reactions are CO2 and H₂O:](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fce303429-f349-4313-b1b6-39c40e965b05%2F8746f469-018c-4ac0-a9ad-280722c6a15a%2F5othvqp_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Rank the following in terms of how simple they are to obtain. Order the items from the most
simple, to the most complex/time consuming. Which is most meaningful for environmental
engineers and why?
COD
ThoD
. BOD
●
The following test results were obtained for a wastewater sample take at an industrial facility. All
the tests were performed using a sample size of 0.2 L. Determine the total solids, total volatile
solids, total fixed solids, total suspended solids, volatile suspended solids, and fixed suspended
solids concentrations in mg/L.
Tare mass of Whatman GF/C filter = 1.5258 g
Mass of Whatman GF/C filter plus reside after drying at 105°C = 1.5592 g
Mass of Whatman GF/C filter plus residue after ignition at 550°C = 1.5411 g
Tare mass of evaporation dish = 52.6289 g
Mass of evaporating dish plus residue after evaporation at 105°C = 52.7053 g
Mass of evaporating dish plus residue after ignition at 550°C = 52.6699 g
Balance the following reaction, show all work and changes in oxidation states (Fe and N only).
Iron reduction (Fe2+ to Fe(OH)) with nitrite (NO₂) oxidation to nitrate (NO3)
Find the theoretical oxygen demand for the 30 mg/L of methanol (CH³OH). The products of the
reactions are CO2 and H₂O:
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