6.05 Rate and Collision Theory Does surface area affect dissolving of Alka-Seltzer tablets? Materials: 1. solo cups 2. Alka-Seltzer tablets 3. Timer 4. Measuring Cup 5. Thermometer Procedures: 1. I placed out two of my solo cups on the counter 2. Then I put 1 cup of room temperature water into each cup. 3. Then put one Alka-Seltzer Tablet in one cup and time it until it dissolves completely. 4. In the second cup I put in a crushed up Alka- Seltzer tablet and timed it until it
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Lab Report: Chemistry DCP + CE Jovi Arya 28 August 2012 Aim The aim of this lab is to determine the order of the reaction between Propanone and aqueous Iodine with respect to Iodine. Apparatus and Reagents Apparatus I. Eye Protection (1) II. Spectrophotometer III. Cuvettes for spectrophotometer IV. Burette (4) V. Burette Stand (4) VI. Stopwatch VII. Conical flask (2) Reagents I. 0.020M I2 (aq.) II. 2.0M CH3COCH3 (aq.) III. 2.0M HCl (aq.) Raw
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Introductory Activity Heart Rate (pulse) Have the students find their heart pulse on the carotid artery of the neck. Use the index and middle finger to measure the pulse. Count the number of beats for 6 seconds and add a zero to the end of that number. This number represents the heart beats per minute. The heart pulse is located on either side of the wind pipe‚ next to the voice box. Allow the students to practice measuring their pulse to determine their resting heart rate. Explain that they need to
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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
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Effect of Concentration on Reaction Rate Aim: To use a simple reaction between sodium thiosulphate and hydrochloric acid to discover concentration this determines how fast chemical reactions occur. Independent Variable: Concentration of hydrochloric acid (%) Dependent Variable: Time taken for chemical reaction to take place (sec) Hypothesis: My prediction is that the increased concentration of the thiosulfate will in turn lead to an increase in the rate of reaction. This is a well informed
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6.1 Risk Structure of Interest Rates 1) The risk structure of interest rates is A) the structure of how interest rates move over time. B) the relationship among interest rates of different bonds with the same maturity. C) the relationship among the term to maturity of different bonds. D) the relationship among interest rates on bonds with different maturities. 2) The risk that interest payments will not be made‚ or that the face value of a bond is
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Inflation and Interest Rate Interest and inflation are key to investing decisions‚ since they have a direct impact on the investment yield. When prices rise‚ the same unit of a currency is able to buy less. A sustained deterioration in the purchasing power of money is called inflation. Investors aim to preserve the value of their money by opting for investments that generate yields higher than the rate of inflation. In most developed economies‚ banks try to keep the interest rates on savings accounts
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versus floating exchange rates Introduction The exchange rate regime The exchange rate regime is the way a country manages its currency in respect to foreign currencies and the foreign exchange market. Each country has its exchange rate policy which determines the form of a government influence on the currency exchange rate. There are three main type of the exchange rate regime: • a floating exchange rate‚ where the market dictates the movements of the exchange rate‚ • and the fixed
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Question 1 Consider an option on a non-dividend-paying stock when the stock price is $30‚ the exercise price is $29‚ the risk-free interest rate is 5% per annum‚ the volatility is 25% per annum‚ and the time to maturity is four months. a. What is the price of the option if it is a European call? b. What is the price of the option if it is an American call? c. What is the price of the option if it is a European put? d. Verify that put–call parity holds. Question 2 Assume
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| | ------------------------------------------------- Top of Form Professional Interest Inventory is based on Holland’s (RIASEC) typology‚ a worldwide reference for educational and vocational guidance. This questionnaire consists of 84 questions and is broken into two sections (12 minutes respectively). There are no right or wrong answers.Part 1/2: Questions 1-60. For each question‚ choose the answer which describes you best. | | | | | | | 1 / | On the sports field‚ you
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