PH at the UN Alfredo Vidal Ceballos 7/10/2014 Group Support Part 1: Solution Group Name and M. cons. Chem formula Type Experimental pH 1 Deidre Acetic Acid 0.1M HC2H3O2 Weak Acid 3.03 3.03 2 Acetic Acid 1M HC2H3O2 Weak Acid 2.59 2.54 3 Hydrochloric Acid 0.5M HClStrong Base 0.85 0.90 4 Jonah Nitric Acid 0.1M HNO3 Strong Acid 2.14 2.14 5 Sodium Acetate 1M NaC2H3O2 Weak Base 9.42 9.42 6 Potassium Dihydrogen Phosphate 0.1M KH2PO4 Weak Acid 5.47 5.47 7 Andy Potassium Hydrogen Phosphate 0
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Introduction When using different methods to measure pH levels there are some tools that can be useful. Some more than others but by putting into action the different methods it may determine which tools will work best and give the best results when testing the pH within a solution. The pH‚ which stands for the proportion of hydrogen ions in a solution‚ could be acidic (acidosis)‚ neutral or basic (alkaline). The pH scale goes from numbers 1 through 14. A pH of 7 is neutral; meaning the amount of hydrogen
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pH pH means Power of Hydrogen or Potential of Hydrogen. pH is a scale of acidity from 0 to 14. It tells how acidic or alkaline a substance is. More acidic solutions have lower pH. More alkaline solutions have higher pH. Substances which are not acidic or alkaline i.e neutral usually have a pH of around 7. Acids have a pH less than 7. Alkalis have a pH greater than 7. There are a lot of ways for finding the pH of something. One way is to use litmus paper. The pH paper is able to tell how strong
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Summary Expectations: Example Summary (15 total points for every summary) Student Name Partner(s): None Chem 253—TA: TA Name Lab 1: Effect of pH on a Food Preservative (we’ll used this as an example) Date of Experiment Purpose (1 point) Should be a very brief statement such as: To determine the effect of pH on the food preservative Sodium Benzoate. Theory (2 points) In this section you should briefly summarize what the textbook says in regards to the history and uses of
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Question 1 Critique Dr. Honeydew’s report. Specifically‚ discuss what is missing and how the missing information should have been presented. First the PH measurements‚ Dr. honey dew does not explain how the PH device was calibrated or if the blood sample was added or mixed with anything prior to the measuring of the pH (like water‚ etc.). In regards to the absorption spectroscopy‚ the method by which the concentration was obtained is questionable. Was the concentration known before the experiment
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Purpose: The Objective of this lab was to learn how to measure the pH (or acidity) of commonly known fluids‚ using the correct tools and procedures. To then use that data to document the changes noticed when mixing those same fluids and changing their respective pH levels. Materials: In order to conduct this experiment several pieces of equipment and other materials were needed. The first item was a graduated cylinder‚ which was used in order to measure out the precise amount of fluids needed
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NAME: ALICE SENAMNIMOH-APPEA CANDIDATE NUMBER: FINAL TOK ESSAY DRAFT QUESTION: “There are only two ways in which humankind can produce knowledge: through passive observation or through active experiment.” To what extent do you agree with this statement? Knowledge as a whole is the total information one has acquired. Passive observation is the process of observation that one is not experiencing the event. It is not as dynamic as active experimentation because one just perceives the event and not
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1 Assignment: Compare & Contrast Essay – Draft Diabetes: Type 1 vs. Type 2 Diabetes is a group of metabolic diseases in which a person has high blood sugar‚ either because the body does not produce enough insulin‚ or because cells do not respond to the insulin that is produced. It is caused by very low insulin levels in one’s body‚ resistance to insulin‚ no insulin production or a combination of factors. Insulin is a hormone which is normally produced by the pancreas that works in the
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Name: Karen Brockert Date: 01/05/2015 Instructor’s Name: Professor Jackson Assignment: SCI203 Phase 1 Lab Report Title: Human Impacts on the Sustainability of Groundwater Part I: Using the time progression of industrialization and human development‚ fill in the data table below to help you write up your lab report Time Period Impact to Forest Ground water levels plenty Saltwater Intrusion Farming Industrial development Populati on 1800s enormous none minute none limited 1900s Down
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Donna Curtis October 13‚ 2012 Nursing 155 Diabetes Assignment 1. Type 2 diabetes mellitus is the result of the pancreas being unable to produce adequate amounts of insulin and the resistance of cells to insulin. This results in glucose remaining in the blood and not being taken up by the cells leading to hyperglycemia. Because of insulin’s role in the stimulation of the synthesis of protein and the storage of fatty acids in adipose tissue‚ inadequate amounts of insulin also reduces nutrients that
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