Description To investigate the effect on caffeine on heart rate of water fleas and to understand the risk of high level consumption of caffeine to the health of the human circulatory system and nervous system. Preview Diagram 1: Chemical structure of caffeine Image source: http://ismaastricht.wikispaces.com/file/list The images above show the chemical structure of caffeine which has a chemical formula of C8H10N4O2. Caffeine was named by the International Union of Pure and Applied Chemistry
Free Caffeine
Sample D –TEACHER INSTRUCTIONS I.B. CHEMISTRY : PRACTICAL ELECTROCHEMISTRY INVESTIGATION : INVESTIGATE THE RATE OF ELECTROPLATING A METAL D DCP CE Goggles and Lab coats must be worn Background Students had been taught ‘Electrochemistry’ as outlined in the IB Chemistry syllabus. Investigation Design an experiment that allows you to investigate a variable affecting the rate of electroplating. Your research question must be focussed and specific and must enable you to carry out your experiment safely
Premium Electrolyte Electrochemistry Electrode
fixed exchange rate system that fixes the exchange rate of Hong Kong Dollar and United State Dollar to a ratio of 7.8: 1 Hong Kong Monetary Authority does not need to stable exchange market by controlling the supply and demand of HKD. It can be stabilized by Fixed-linkage System. In the past 15 years‚ Hong Kong interest rates and exchange rates fluctuated in the same trend of the US interest rate and exchange rate. The graphs below show an example of interest rate and exchange rate respectively:
Premium United States dollar Inflation Stock market
EXCHANGE RATES The exchange rate is the price of one country’s currency in terms of another country’s currency Quoted exchange rates can be either direct or indirect‚ Direct: home currency per unit of foreign currency 39 Rupees per US Dollars 80 Rupees per Pound Indirect: foreign currency per unit of home currency 0.0255102 US Dollar per Indian Rupee 0.491594 Pound per Indian Rupee Appreciation of Currency Currency Appreciation means that the given currency
Premium Foreign exchange market Bretton Woods system Monetary policy
Science Coursework-Rates of Reactions Introduction Investigating how the concentration of sodium-thiosulphate (STS) and hydrochloric acid (HCL) affects the rate of reaction in the experiment. In addition I am also checking how different variables affect my experiment and also how I can make my test more precise‚ reliable and accurate. Strategy According to my results‚ as the concentration of STS solution increased the rate of reaction of my experiment was increased. Also as the concentration
Premium Chemical reaction Chemistry Reaction rate
Limitations…………………………………………………………….3 Methodologies……………………………………………………………………...3 Interest rate and its determinants…………………………………………………3-5 Analysis of regression equation………………………………………………….6-7 Analysis of correlation matrix……………………………………………………7-8 Conclusion…………………………………………………………........................8 Bibliography……………………………………………………………………….8 Determinants of Interest Rates in Bangladesh Executive Summary: Interest rate is applicable on all type of lending allover the world. Lending can be of different
Premium Inflation Money supply Economics
SCH4U7-02 Monday‚ October 21‚ 2013 Designing an Experiment to Investigate Factors Affecting Rate of Reaction Introduction Hydrogen Peroxide (H2O2)‚ is the most simple peroxide and commonly used in several household items such as toothpaste or as an alternative to bleach. However hydrogen peroxide it is a very dangerous substance when accumulated in large amounts. If that situation occurs this substance must be decomposed. But how can we decompose this reaction? Well it decomposes by itself
Premium Oxygen Hydrogen peroxide
TITLE: Effect of the caffeine on the heart rate OBJECTIVE: To investigate the effect of the caffeine on the heart rate of living organisms. INTRODUCTION: * Daphnia Daphnia are small‚ planktonic crustaceans‚ between 0.2 and 5 mm in length. Daphnia are members of the order Cladocera‚ and are one of the several small aquatic crustaceans commonly called water fleas because of their saltatory swimming style (although fleas are insects and thus only very distantly related). They
Premium Caffeine Blood Coffee
A brief history of Exchange rate of Bangladesh Since Bangladesh was the part of Pakistan called East Pakistan‚ shared the same currency and trade-policy history as the rest of Pakistan until the liberation of Bangladesh. Bangladeshi taka was created on January 1 1972. Pakistan rupees in circulation remained legal tender until replaced by the taka 1:1 beginning March 4 1972. The taka was set at par with the Indian rupee‚ and fixed to sterling at Tk 18.9677‚ or Tk 7.2797 to the United States dollar
Premium Foreign exchange market Currency Exchange rate
Project report On Rate of Exchange and Foreign Investment The Indian case from 2009-10 to 2011-12 Acknowledgement As a part of PGDM curriculum at Birla Institute of Management Technology‚ the preparation of this project report has been a unique and rewarding experience. Apart from our efforts‚ the success of any project depends largely on the encouragement and guidelines of many others. We take this opportunity to express our gratitude to the people
Premium Currency Exchange rate Macroeconomics