Automotive Assignment Example | Topics and Well Written Essays - 1500 words - 1

Automotive - Assignment Example The rate of motor vehicles deregistration stands at 20% yearly. However, the owners of the abandoned motor vehicles are not easily traced. The New Zealand authorities always try to locate the owners of the abandoned vehicles. Their search at times pays. The authorities are able to locate about 35% of the abandoned car owner. However, this rate is minimal compared to the rate of vehicles which are being abandoned yearly (Kenny, 2001). New Zealand had a total of 1.5 million passengers’ cars in the year 1986. This number considerably increased to 2.5 million in the year 2004. The approximated value of used cars that are being imported to the country stands at 70%. Most of these used cars are abandoned by their owners on both private and public properties. The abandonment of these used cars possessed a lot of environmental concerns. This has prompted the motor vehicle industry to come up with policies that reduce the pollution caused. Some of these policies are removal of operating fluids, battery, LPG tanks, tires, CFCs present in the air conditioning units, and defusing of air bags and seat-belts. New Zealand authorities therefore, need to benchmark with Western Europe countries so as to solve their motor vehicle abandonment practices. This is because Western Europe currently leads the world in the management of used motor vehicles. Some of the laid down approaches for proper motor vehicle management are th e use of the EU Directive. This directive on motor vehicles was adopted in the year 2000 (Cassells, 2004). EU directive takes into consideration the extended manufacturer responsibility. The directive has also set reuse and various recovery targets. The success of this directive cannot be easily determined at the moment. However, other member countries like the Netherlands and Germany has taken the lead in the implementation of this policy. These two countries have successfully been able to recycle used motor vehicles within their territory. Sweden being

Chemistry Tasks Scholarship Essay Example | Topics and Well Written Essays - 1000 words

Chemistry Tasks - Scholarship Essay Example 6. A conjugate acid base pair are the compounds formed by the removal or addition of a proton from the original compound. In the question, only H3O+ and OH- are not a conjugate acid base pair as there is a difference of 2 protons. 9. The aqueous solution of a salt would be acidic if the salt consists of the conjugate base of a strong acid and conjugate acid of a weak base. Therefore the aqueous solution of NH4F would result in a acidic solution. 12. The aqueous solution of a salt would be basic if the salt consists of the conjugate base of a weak acid and conjugate acid of a strong base. Therefore the aqueous solution of NaCH3CO2 would result in a basic solution as NaOH is a strong base and CH3COOH is a weak acid. 13. Arrhenius base is the substance that when added to water increases the concentration of OH- ions present in the solution. NH3 when added to water does not increase the concentration of OH- ions therefore it is not an Arrhenius base. 14. Arrhenius acid is the substance that when added to water increases the concentration of H+ ions present in the solution. Addition of FeCl3 to water would not increase the concentration of H+ ions in the solution, so it is not a Arrhenius acid. From this it is clear that the reaction moves in the forward direction, which means that HNO2 gets converted to NO2- and CH3COO- gets converted to CH3COOH. Therefore it is clear that CH3COOH is a weaker acid compared to HNO2. So for this reaction CH3COOH is the weakest acid. 17. We know that pH = -log[H+] therefore if the pH increases by 1. The H+ concentration would decrease exponentially by a factor of 10. 18. Molecular weight of Ba(OH)2 is 171.34 g/mole. Therefore the moles of Ba(OH)2 added would be (5/171.34) = 0.029 moles. Each mole of Ba(OH)2 would dissociate to give 2 moles of OH- ions. So, we have