LAB 6. ACIDS AND BASES: PH AND BUFFERS PURPOSE: To determine the pH of common acids and bases using a pH meter‚ pH paper‚ and red cabbage indicator. To test the effect of adding an acid or base to a buffer solution. SAFETY CONCERNS: Always wear safety goggles. Wash with soap and water if skin contacts acids or bases. ACIDS: An Acid is a substance that when dissolved in water will produce hydrogen ions‚ H+‚ in the solution. An acid that does not contain carbon is called an inorganic
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Suggested time allotment: 5 to 6 hours MODULE 2 ACIDS AND BASES In Module 1‚ you identified common properties of solutions using different methods. You learned how to report the amount of the components in a given volume of solution. You also found out that not all solutions are liquid. Some of them are solids and others are gases. Towards the end of the module‚ you investigated the factors that affect how fast a solid dissolves in water. Most of the solutions you studied in Module 1
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Acid-Base Titration Pre-Lab Discussion In the chemistry laboratory‚ it is sometimes necessary to experimentally determine the concentration of an acid solution or a base solution. A procedure for making this kind of determination is called an acid-base titration. In this procedure‚ a solution of known concentration‚ called the standard solution‚ is used to neutralize a precisely measured volume of the solution of unknown concentration to which one or two drops of an appropriate acid-base
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Vinegar Girl by Anne Tyler is a 2016 retelling of William Shakespeare’s Taming of the Shrew. The book was published as part of the “Hogarth Shakespeare” project by Random House. Tyler’s protagonist‚ Kate Battista‚ is just as strong-willed as Shakespeare’s Katherina. Likewise‚ both protagonists are prickly with those around them. Tyler opens Vinegar Girl with Kate in her garden her father‚ Dr. Battista‚ calls her on the phone. He forgot his lunch and would like her to bring it to him. Kate agrees
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Ethanoic Acid Advantages: Ethanoic acid is non-toxic and is a weak acid‚ meaning it will not do any damage to most surfaces as it does not corrode or bind to other metals‚ therefore can be easily removed through washing or rinsing it. Disadvantages: Ethanoic Acid is the slowest de-scaler of the three acids‚ and is therefore the least effective. It also may cause an unpleasant smell‚ and can have a negative effect on the taste of coffee meaning one would need to spend longer time rinsing and cleaning
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benefits of apple cider vinegar For centuries people have been using natural apple cider vinegar as both a food and a medicine for themselves and for their pets. Since 400BC‚ Hippocrates‚ the father of modern medicine‚ and others‚ have used vinegar and vinegar mixed with honey‚ as anenergizing tonic and ahealing elixir. More recently‚ the health benefits of apple cider vinegar have been promoted by many well-known authors such as Dr Jarvis‚ Paul C. Bragg and Patricia Bragg. D.C. Jarvis‚ a Vermont
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This is one of the most interesting questions scientist ask why does this chemical reaction happen when you mix this stuff together . Why do baking soda and vinegar react with each other? This happens because of an acid base reaction and also because baking soda is a bicarbonate and vinegar is an acid and when you mix them together fiss start to show up . What does this have to do with my science fair project? This has to do with my science fair project because it shows how the volcanic
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Acid Strength Grade 10- Science (chemistry) 11/23/2012 Mariana Boff Acids Strength Acids are substances that contain hydrogen atoms which detach to form hydrogen ions when the acid is dissolved. Acids are divided into two main categories: the strong and weak acids. The stronger ones are very corrosive and can cause severe skin burns‚ here are some examples: nitric acid (HNO3)‚ hydrochloric acid (HCl) and sulfuric acid (H2SO4). The weaker ones are less corrosive and when in touch with the
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Analytical Chemistry Spring 2014 September 2nd‚ 2014 Pre-Lab 1: Calibration of Volumetric Glassware Objective: The sole objective of this lab is to become acquainted with the scientific techniques that are utilized in this lab including: data analysis‚ analytical balance‚ and use of glassware and lab materials. To demonstrate these basic concepts‚ a 50 mL buret and 10 mL volumetric flask will be calibrated. Apparatus: Procedure and Equipment: The following equipment
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discovering how to inflate a balloon using baking soda and vinegar. Also to be able to contest whether baking soda and vinegar alone will inflate a balloon faster than baking soda and vinegar with lemon juice. Question:Will Baking Soda and Vinegar or Baking Soda and Vinegar with lemon juice‚ blow up the balloon faster? hypothesis:I think that the baking soda and vinegar alone will blow up the balloon faster than the Baking Soda and Vinegar with lemon juice. thesis: Procedure: Using the funnel‚
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