Analytical Chem Lab Report Example | Topics and Well Written Essays - 1250 words

Analytical Chem - Lab Report Example titrant volume. From the volume of titrant at the equivalence point weight of KI and KCl in the unknown solution was determined. Potentiometric titration is based on change in electrode potential with change in the ionic concentration during titration reaction. During titration reaction, there is decrease in the ionic concentration in a solution and this leads to decrease in electrode potential in accordance with Nernst Equation, which relates electrode potential with concentration of the ion in equilibrium with the electrode. 2. A silver nitrate solution containing 0.9922 grams of AgNO3 in 100 mL of solution was used as the titrant. The titrant was handled carefully so as to protect the skin from it. Safety ware and hand gloves were used. 3. The 200ï  ­L automatic pipette was calibrated for a 100ï  ­L delivery with the analytical balance. This was done by recording the mass of 20 aliquots using analytical balance and then calculating the average mass and the standard deviation. This process was repeated until the relative standard deviation was brought down to less than 1%. 4. A set of 5 agar salt bridges containing 3% agar and 1% KNO3 in nanopure water were made. The agar/salt/water mixture was heated in a microwave until the agar dissolved and the warm solution was injected into 10 cm lengths of plastic tubing. 5. An electrochemical cell was set up with a 24 well microplate. In one well 0.10 M solution of Cu(NO3)2 and a copper electrode was placed. In an adjacent well 1 mL of the titrant and a silver wire electrode was placed. The two wells were connected with a KNO3 salt bridge and the two electrodes were connected to the leads of the pH meter. The potential of the cell was measured. 6. The electrodes were disconnected and cleaned. The 24 well plate on the balance was weighed on the balance. 1.00 mL of the unknown solution was added with the 1000ï  ­L pipette to a well adjacent to the copper well, and

Stages of Japanese Post-war Economic Growth Case Study

Stages of Japanese Post-war Economic Growth - Case Study Example Economic Recovery Phase: 1946-1950 The first phase implying the recovery of Japanese economy from the adverse effects of World War II started soon after the year 1945. Teranishi propounds that in the wake of the Second War, the Japanese economy confronted with an arrant economic disaster in the form of declining GNP, mounting inflationary pressures, and collapsing production. However, soon after the downturn in the year 1946, the economy caught the track of recovery. In 1948, the inflation was cut down significantly and production was steadily improved. This recovery and stabilisation period lasted during 1945-50 (139). This period is crucial in the study of the rapid growth of Japanese economy in the post-war era because this phase started a couple of years after the war. Also, a study of these years' economic activity suggests major changes made to the industrial structure that impacted on its growth. Japan was fortunate in the sense that although it had lost its economic and industrial vivacity as a consequence of the World War II, yet its efficient and effective human resource was still there to bring the country out of the disaster caused due to war. Seldon propounds that, "it was not that Japan was building from Scratch True, industry and the industrial cities had been devastated. But there existed large resources of well-educated manpower with a strong determination to survive" (271). The country's human resource played a great role in lifting the country from economic downturn to the recovery period. Seldon illuminates that the "'long-term achievement was to steer the pre-war economy in new directions move slowly away from cotton to heavy industry such as iron, steel, shipbuilding, and chemical production" (272). No doubt, the... This paper describes the rapid economic development in Japan after the year 1945 in the context of various phases it experienced while travelling to the unprecedented levels of growth. This paper identifies several economic phases in the development of post-war Japan, each with some specific characteristics. Japanese economic growth in the post-war period is considered to be an example for countries struggling against their economic disasters. It has also been termed as a ‘miracle’ owing to the spectacular effort demonstrated on the part of a nation that had just suffered from war, yet that leaped rapidly towards the economic boom. The first phase implying the recovery of Japanese economy from the adverse effects of World War II started soon after the year 1945. In the wake of the Second War, the Japanese economy confronted with an arrant economic disaster. Soon after the downturn in the year 1946, the economy caught the track of recovery. This recovery and stabilisation period lasted during 1945-50 This period was successful enough to curb the inflationary pressures as well as restore the production level nearly to the pre-war period. In this period, industries were strengthened by means of demilitarisation and amendments to the labour laws. The boom of Japanese economy from mid 50s to the early 70s was very well manifested in the growth of the manufacturing capabilities in the country. Not only that, the economic growth even rose above the pre-war level during the 1960s and this rapid growth lasted till the early 1970s.