CM8001

Desalination is not a fail safe process and carries many environmental repercussions. Desalination requires pre-treatment and cleaning chemicals are added to the water for efficiency and success. Chemicals include: chlorine hydrochloric acid, hydrogen peroxide, which can only be used for a limited time, once it loses the ability to clean the water, the chemicals are dumped, which causes environmental concerns. By products of chemicals used in desalination can get through into ‘pure water’ and endanger people who drink it. Futhurmore, it can be acidic to both pipes and digestive systems. It is more costly than reverse osmosis and less effective than reverse osmosis.

Either of them are polar. Vitamins that are water soluble have hydrogen bonds between water molecules and the H-O, H-N sites of the vitamins. Hence, the molecule is most likely polar due to the H-O bonds and H-N bonds. Vitamins that are fat soluble are non-polar compounds because the major group in fatty acid fats is the alkyl chain which can exhibit van de waals forces with other alkyl, non-polar groups, hence they are fat soluble and is non-polar vitamins. Like dissolves like. Water: polar therefore vitamins that are water soluble are polar. Oil: non-polar, therefore vitamins that are fat soluble are non-polar.

A,C,D: decrease electicity usage –> decrease amount of fossil fuels burtn –> decrease emissions of Nox and SOx –> decrease acid rain
B,E: decrease pollutant emission from transportation –> decreaseNOx and SOx –> decrease acid rain

(a) Coal fired plants emit a lot of harmful sulfate, carbon and nitrate particles. Soot, a type of carbon particle is also released. These particles tend to absorb light rather than scatter them, resulting in poor visibility as such particles build up in our environment. Small droplets of SO3
(b) PH=4 since every decrease in PH by 1 is equals to the increase of hydronium ions by 10 times. Normal rain water PH = 5.6