Homework No. 6
HOMEWORK #6 (Due October 31, 2013)
3.1 mg/L H2S
1.4 mg/L HS26.5 mg/L SO42LH2S = 3.1mg = 0.0031 grams
LHS- = 1.4mg = .0014 grams
LSO42- = 26.5mg = .0265 grams
(Weight of 1 mol = 34) → 0.0031/34 = .000091 moles per liter
(Weight of 1 mol = 33) →.0014/33 = .000042 moles per liter
(weight of 1 mol = 96) → .0265/96 = .00028 moles per liter
Moles of S (Weight of 1 mol = 32) = ∑ (L H2S + L HS- + L SO42- ) = .000410 → .000410*32 = .013 grams = 13.0 mg/L
Therefore: H2O (Weight of 1 mol = 18) = 18/1000 = 55.56 moles/L
=.000410/55.56 moles/L = 7.37 E-6 * (1000) = 7.37 ppm
Sean Paquette
Air & Water Pollution Prevention & Control Engineering
MANE-6960H01
Semester Fall 2013
Homework No. 6
(1 + 35.45 = 36.45 grams) of HCI are required to prepare a 1M solution of HCI in water
pH = -log10(1) = 0
Sean Paquette
Air & Water Pollution Prevention & Control Engineering
MANE-6960H01
Semester Fall 2013
Homework No. 6
Notes of items/topic that interest me within water pollution:
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Polluted Runoff (Nonpoint Source Pollution) caused by large national weather storms
Urban low impact water pollution control development
Project Proposal for Water Pollution Engineering Project:
Idea 1: A tsunami creates a surge of ocean water that can engulf huge geographic areas. As the
water comes ashore, drinking water wells can become contaminated. Also, as the
ocean water withdraws from the land, the salt water then includes large amounts of
debris and other chemical contaminants. A project proposal for my water pollution
engineering project is to examine the impacts of tsunamis on water quality and the
general surroundings.
http://www.bt.cdc.gov/disasters/tsunamis/waterquality.asp
http://www.bt.cdc.gov/disasters/tsunamis/pdf/tsunami-waterquality.pdf
Idea 2: In areas where oil and gas development is prevalent, surface water, wells and soils
contain contaminates. Another project proposal for my water pollution engineering
project is to examine the water impacts due oil drilling in the Gulf of Mexico.
http://www.akmarine.org/our-work/protect-bristol-bay/risks-of-oil-gas-drilling
http://www.kidcyber.com.au/topics/waterpollution.HTM
Sean Paquette
Air & Water Pollution Prevention & Control Engineering
MANE-6960H01
Semester Fall 2013