ABSTRACT The effect of molecular weight on the rate of diffusion was measured using two tests namely: the glass tube test and the agar-water test. The set-up of the glass tube test used two cotton balls of the same size. One cotton ball is moistened with hydrochloric acid (HCl) and the other one is moistened with ammonium hydroxide (NH4OH). The two cotton balls were inserted in both ends of the glass tube. NH4OH which has a lighter molecular weight (35.0459 g/mole) diffused with a faster rate (dave=20
Premium Ammonia Molecular diffusion
birth and death rates‚ infant mortality‚ fertility and natural increase rate‚ and life expectancy. First of all‚ these two countries have drastically different Crude Birth Rates‚ or CBR for short. Crude Birth Rates are devised by how many babies are born per one thousand people in one year. The CBR in Haiti is 25.63 babies per one thousand people. That means if you were to take one thousand people‚ there would be roughly 26 babies born in 2016 alone. However‚ the Crude Birth Rate in Hungary is far
Premium Demography Population
Raising the Interest Rate Principles of Finance Introduction After years of declining interest rates‚ we are facing a dilemma; should the Federal government increase rates to contain inflation‚ or keep rates low to boost the US economy? Increases in consumption of oil‚ metals‚ materials‚ and food‚ both foreign and domestic‚ are increasing demand. Prices are rising on a global scale as demand increases. Additionally‚ the US is experiencing rising costs for healthcare and education. Yet‚ the
Premium Weighted average cost of capital Net present value Interest rate
An exchange-rate regime is the way an authority manages its currency in relation to other currencies and the foreign exchange market. It is closely related to monetary policy and the two are generally dependent on many of the same factors. The basic types are 1. Floating exchange rate‚ where the market dictates movements in the exchange rate Floating rates are the most common exchange rate regime today. For example‚ the dollar‚ euro‚ yen‚ and British pound all are floating currencies. However
Premium Foreign exchange market Currency Bretton Woods system
Flat Taxation is Equal Taxation Tax rates in America have been changed and reformed to try and meet the needs of the current economy‚ or to make a politicians look good. Recent questions have been asked about whether we should reform the entire style of tax rates in America. Future generations are going to feel the burden or benefit from tax choices we make now because it takes time for things of this magnitude to take place. Also it is a possibility that the future generation may need new tax
Premium Taxation Progressive tax Tax
the growth rate of crystals The information gained from this experiment can help society by showing different temperatures can affect the growth rate of different types of matter; also it may help computer chip manufacturers‚ as there are crystals in computer chips. Temperature affects the way crystals grow through
Premium Chemistry Temperature Heat
Factors Affecting Rates of Reaction Thanks to Michelle Craig Manitoba Curriculum Chemistry Grade 12; Kinetics‚ Topic 3-08 Objectives To design short experiments to investigate and explain qualitatively using collision theory the relationship between reaction rate and temperature‚ concentration‚ catalyst‚ and surface area. Apparatus and Materials Available 3 x 250 mL beakers magnesium ribbon (1 cm) 3 x test tubes magnesium powder test tube rack mossy zinc 10 mL graduated
Premium Chemical reaction Reaction rate
fiscal policy designers should opt for a flexible exchange rate system. Nations‚ however‚ which do not have such policy makers should opt instead for a fixed exchange rate system. When attempting to stabilize an economy‚ monetary policy is the most efficient weapon that policymakers possess (Weerapana‚ 2003). In other words‚ it is much simpler to enact monetary policy than fiscal (Weerapana‚ 2003). Some nations benefit from a fixed exchange rate system‚ however. Nations such as Brazil‚ Kenya and Turkey
Premium Inflation Bretton Woods system Monetary policy
Examine the main trends in the birth and death rates in the UK since 1900 As the population of a country increases‚ there will be certain factors affecting the people of that country; the birth rate‚ and the death rate are two of the major demographic trends. Since 1900 the UK has changed greatly‚ as has the demography of the country. The Birth rate - the number of live births per 1000 of the population per year originally was fairly high due to the fact that child labour was legal in Victorian
Free Demography Population
effort to determine the causes or correlates of these high or low rates‚ answering the questions below (citing any data you find in these sources): a. Is there any consistent relationship between levels of education and homicide rates? I did Japan and there was no relationship with education and crimes. b. Is there any consistent relationship between economic indicators and homicide rates? If so‚ which ones? They had a low homicide rates because of the high surveillance of the Japanese population.
Premium Central Intelligence Agency Crime Japan