3A Task 1 Aim: the aim of the experiment is to find the best temperature to ferment yeast at. Hypothesis: the yeast will ferment the best at 60 degrees Celsius. Independent variable: the temperature of the water the yeast is put in to ferment. Dependent variable. The amount of air bubbles the yeast produces. Controlled variable: the amount of yeast and glucose in each syringe. Uncontrolled variables: human error in counting. Materials : Plastic soft drink bottle cut to size Marking pen
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Aim During this experiment I will be investigating if heating limestone and changing the concentration of the acid will affect the rate of reaction. Preliminary work Before doing our main experiment‚ we will have to conduct another experiment‚ to see what concentration of acid we will have to use. We done this using 0.1M‚ 0.5M and 1M of Hydrochloric acid‚ and 0.1g of powdered limestone‚ we used powdered limestone‚ as it would be a fairer test‚ I think this as all the particles of limestone will
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Law and Order is a weekly series televised on NBC‚ during season fifteen episode seven‚ Dissonant Voices. Jackie Walker an openly gay music teacher at a prestigious preschool in New York with a lustrous career as a singing coach on a reality show faces charges of child sex abuse. Jonah Allen a four year-old student comes forward with claims of sexual abuse by Jackie Walker. The prosecutor and detective Benson displays prejudice towards Jackie due to his sexual orientation however‚ detective Rollins
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human trafficking. In order to encounter and solve these complex problems the state of Pakistan must ensure rule of law particularly a well-established and independent judicial system. Pakistan is an embattled state‚ but at the same time Pakistan and its people are also a misunderstood nation. This article is a contribution to the ongoing debate about implementing rule of law in Pakistan. Rule of law requires the unity of law which is mostly in the form of state law. Pakistan is a legally
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In the Law and Order episode‚ “The Harvest” the decision that is made in court‚ is my decision as well. Both Dr. Cosgrove and Elias are completely guilty. In the beginning‚ Nancy O’Neal is riding home with her husband‚ Marty‚ in the car on the passenger’s side. Not intended as the target‚ Nancy is shot by an unknown shooter. This wound ultimately puts her in the hospital unresponsive. Detectives Briscoe and Curtis easily track down the shooter known as Elias Camacho. Elias stated that he just intended
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Calculating the rate constants‚ half-lives‚ and activation of a reaction by monitoring the change in absorption Department of Chemistry Dusten Dussex Lab partner: John Drury Lab date: February 7th‚ 2013 Due date: February 21st‚ 2013 Introduction In this experiment we are analyzing the relationship between reaction rates at different concentrations and temperatures to determine the true rate constant‚ activation energy‚ reaction orders‚ and half-life of a reaction. The reaction of interest
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concentration on the reaction between Catalase and hydrogen peroxide. Introduction Enzymes are proteins that act as catalysts (a substance that increases or decreases the rate of a reaction) 2. Enzymes bind to a molecule called a substrate‚ converting it into a product. Nearly all of the chemical reactions that occur in a biological cell need enzymes to make them occur. Enzymes like all catalysts lower the activation energy needed for a reaction to take place3. They dramatically speed up the rate at which
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on the rate of reaction. By using self investigative and experimental skills‚ the experiment was done in order to determine how the rate of reaction will be altered‚ whether it will increase‚ decrease or remain constant when the different concentration of enzymes added. INTRODUCTION: Enzymes are produced naturally in plant‚ animal‚ and microbial cell. There are thousands of different enzyme can be found in any cell. Enzymes can be describe as molecules that are greatly increase the rate of chemical
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Investigate the effect of concentration on the rate of a reaction Research question: To what extent does the concentration of hydrochloric acid affect the rate of the following reaction: 2 HCl(aq) + CaCO3(s) → CaCl2(aq) + H2O(l) + CO2(g) Data Collection and Processing: Table1: Different volumes of Co2 gas produced by Different concentrations of HCL acid. Volume of CO2gas formed from 5 different concentrations of HCL acid ±0.5ml 5 different concentrations of HCL acid (Mol) ±0.5ml Time (sec) ±0
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Affect Rates Of Reaction Aim: How does the mass of calcium carbonate affect its rate of reaction with hydrochloric acid? Hypothesis: I hypothesize that when the mass of the calcium carbonate increases‚ the rate of reaction of the calcium carbonate and hydrochloric will also increase. The collision theory states that the more successful collisions there are within the reaction‚ the faster the rate of reaction. When the mass increases‚ so does the number of particles in the reaction‚ thus
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