How Does Caffeine Affect The Ph Of Decaffeinated Coffee

Problem: How does caffeine affect the pH of decaffeinated coffee? Hypothesis: The caffeine will increase the pH of the decaffeinated coffee. Research: Caffeine is an alkaloid that is found naturally in things such as nuts, leaves, and seeds. Caffeine is also known as 1,3,7-Trimethylxanthine, Thein, Methylbromine, Guaranine, Cafeina, Coffeinum N, Coffeinum Purrum, Dexitax, and Durvitan. The molecular weight of caffeine is 194.194 g/mol. The chemical formula for caffeine is C8H10N4O2. Caffeine also acts as an adenosine receptor protagonist. (PubChem.gov, 2004) Friedrich Ferdinand Runge was the first person to isolate caffeine. (Helmenstine, 2017) Caffeine is typically found in these plants: coffee plants, guarana, yerba mate, cacao†¦show more content†¦The darker the coffee is roasted, the lower the pH is. And for cold brewing, the coffee’s pH is even greatly increased by up to an entire point. (Chemistry, 2009) Caffeine’s melting point is 236 degrees Celsius. Caffeine odor: odorless. Keep caffeine away from: flames, sparks, heat, and incompatible materials. Toxic dose for human: 10-15 grams, if ingested. Caf feine is lethal to pets and other animals. Lethal dose for rat: 247 mg. Lethal dose for rabbit: 224 mg. Lethal dose for hamster: 230 mg. Lethal dose for mouse: 127 mg. (Materials, 2014) Lethal dose for dog: 140mg. Lethal dose for domestic cat: 110 (Control, 2011) pH is the measurement of the hydrogen ion concentration of a given solution. Solutions that tend to have a lower concentration of hydrogen ions have lower pHs. Solutions that have a higher concentration of hydrogen ions have higher pHs. A base is a substance that accepts hydrogen ions from the acids. Acids donate their hydrogen ions, because they don’t want them. (Buddies, 2015) This means that caffeine acts as if it is a base, but it is just a weak base. Caffeine will raise the pH of a solution due of this. (Mithoron SendersReagent, 15) The logarithmic scale is used to measure acidity and alkalinity. pH is the negative version of the logarithmic hydrogen ions. Hydrogen ions are represented by the H+ symbol. pH=-log [H+] Various types of coffee have different pHs. Black coffee has a standard pH of 5.70, Starbucks StandardShow MoreRelatedSocial Relevance Report: Caffeine Essay1787 Words   |  8 PagesSocial Relevance Report Chemistry TOPIC: CAFFEINE CONTENTS 1.0 INTRODUCTION 1-2 1.1 What is caffeine? 1.2 Social Significance 1.3 Overview 2.0 CHEMICAL BACKGROUND 3-5 2.1 Chemical Properties of Caffeine 2.2 Physical Properties of Caffeine 2.3 How Caffeine Works in the Human Body 3.0 SOCIAL SIGNIFICANCE 6-9 3.1 How caffeine affects the society? 3.1.1 Health 3.1.2 Caffeine Addiction and Withdrawal 4.0 CONCLUSION 10 BIBLIOGRAPHY 11 1.0Read MoreResearch on the Effects of Various Beverages on the pH of Saliva1978 Words   |  8 Pagesbut when you abbreviate it, it comes out to be better known as pH. Potential Hydrogen (pH) is the measure of any solutions hydrogen-ion concentration. The range for pH is generally from zero to fourteen, with seven being neutral. If you measure any solution, if it is lower than the neutral amount of seven than that would be considered as it being more acidic and having less oxygen in its fluid but if it is higher than seven on the pH reading it will be considered as being oxygen rich and containsRead More_x000C_Introduction to Statistics and Data Analysis355457 Words   |  1422 Pagesand entertainment. A Focus on Interpretation and Communication Most chapters include a section titled â€Å"Interpreting and Communicating the Results of Statistical Analyses.† These sections include advice on how to best communicate the results of a statistical analysis and also consider how to interpret statistical summaries ââ€"   Preface xv found in journals and other published sources. A subsection titled â€Å"A Word to the Wise† reminds readers of things that must be considered in order to ensure