The change in enthalpy relies on the concentration of the salt solution, because different concentrations will produce different enthalpies. There is an equation to determine how much of this heat energy is lost or gained when a reaction is performed. Q = c m (T1-T2) Where: q is the energy in Joules C is the heat capacity, measured in joules per gram per degree Celsius M is the mass of the solution, measured in grams J is the joules G is the grams of water T is the temperature ΔH=ΔE + PΔV = (q p +w) – w = q p Procedure: 1. Follow instructions 1-9 in Appendix A-1 to initialize the MeasureNet workstation. a.
Ascorbic acid is easily destroyed during processing and storage through the action of metals such as copper and iron. Both exposure to oxygen
When we refine or even dig up oil sands we produce harmful chemicals. Since Alberta oil sands are located near major rivers some of those chemicals end up in the rivers. The most famous case is with the Athabasca River, where the water is contaminated by many harmful chemicals. The Athabasca water ecosystem is slowly being poisoned and so are the people that use the water for their water supply. The oil sands maybe a large part of our social and economic structure, but they are slowly ruining our environment.
2. Do background research – Utilizing at least one scholarly source, describe how variations in dissolved oxygen content in a body of water can affect fish populations. Answer = “Oxygen depletions are the most common cause of fish kills in ponds. (Aquaplant, 2014).” Based on my observation of the chart and what I read, the higher the dissolved oxygen levels the number of fish drops. Dissolved oxygen levels can also cause fish to suffocate and be more susceptible to diseases.
The methane concentration is seventeen percent higher in the drinking water near sites where fracking is performed. The water is used by near by cities and towns. This water has been seen to cause sensory, respiratory, and neurological damage to those who are exposed to it. The chemicals used in the mixture are chemicals known to cause cancer. Fracking is also hard on the environment.
Lab 5: Precipitate Patterns October 31st, 2013 Partners: Muhammad Saeed, Kristian Palmer and Kyle Poirier By: Rauman Tuan-Kichil For: Mr. Fontaine Investigation: Wastewater from metal manufacturing processes often contains toxic cations. These ions must be removed before the water can be released into the environment. Many of these ions can be removed using precipitation reactions. For example, recycled car batteries contain toxic lead cations, Pb 2+. These can be removed by adding a solution of potassium iodide, KI.
It requires long periods of standing moisture, since it is a slow-growing mold. It appears black and green, and like all molds, it emits a musty odor. People at Risk • Black mold is toxigenic, meaning that it releases harmful toxins (called mycotoxins) into the atmosphere. Anyone can experience symptoms after breathing in mycotoxins, but certain people have an elevated risk, including children, the elderly, people with weak
Answer = Coal mining can require the removal of almost an entire layer of material deep under the surface. When the timber supports collapse, this can lead to subsidence. The subsidence can mean economic loss to people above or damage to natural areas. It can even cause cracks in river beds, leading to loss of river flow. Some mining involves the inadvertent dispersal of heavy metals, such as lead, into the atmosphere.
Hoses can be undone, gaskets can fail, pits leak and liquids always hit the ground, repeatedly in large quantities. Fracking needs a lot of work to be done before it can begin obtaining oil. The fracking fluids have a lot of toxic chemicals and become even more contaminated when pumped down a hole as they travel through rock formations before returning to the surface as flow back. The liquids can cause ground contamination and even in small portions can contaminate shallow aquifers with hydrocarbons, toxic chemicals, heavy metals and radioactive
Abdominal pain and abdominal cramping is caused the inflammation of the walls and eventually thickens the walls with scar tissue and leads to cramping. Mild Crohn’s causes moderate intestinal discomfort and in more severe cases, can cause nausea and vomiting. Blood in the stool is caused by food being moved from the digestive tract through the inflamed tissue. The bleeding might be notices as bright red directly in the toilet or darker red blood that is mixed into the stool. Crohn’s also causes small sores or ulcers on the surface of the intestines that eventually penetrate into the intestinal walls.