To investigate the results of the different amounts of sodium bicarbonate (2g‚4‚8g)‚when put in the baking process to produce cupcakes‚obtained by the change of height of a cupcake measured by a ruler‚when baked at 180 degrees celsius for 20 minutes when measured with a ruler. Research question: What will be the result of adding different amounts sodium bicarbonate (2g‚4g‚8g) in a standard (vanilla) cupcake ‚when they are baked at 180 degrees celsius over a period of 20 minutes using an oven thermometer
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The Effects Sodium Chloride has on pond water Introduction Ponds are depressions in the ground that fill with water from either run offs or melting snow or rain fall from many different weather changes. There are two types of ponds permanent and temporary. Ponds tend to be much smaller in size and are usually only six to ten feet in depth. This differs from a lake because the size of a lake is much larger and is much deeper. The temperature of a pond is usually the same from top to bottom and
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Chapter 11 CHEMICAL REACTIONS 153 CHAPTER 11 11. Chemical Reactions All living beings born in this beautiful world have their own life styles. Have you observed and analyzed your daily life from the view point of a chemist? Chemical reactions happen around us all the time and even in our body. Any change can be classified as physical change and chemical change. Physical changes can be easily reversed but‚ it is not easy to reverse a chemical change. What is the reason? In chemical
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Floyd Askew 3/19/13 CHEM 1211L Lab Report Introduction The purpose of this lab is to use volumetric analysis to determine the concentration of unknown substances. A sodium hydroxide solution is standardized to assist in finding the concentration of an acetic acid. An indicator must be used to pin point the equivalence point‚ the point in which 1 mole of a substance is equal to 1 mole of another. When that is found‚ we can determine the concentration. HC2H3O2 (aq) + NaOH (aq)
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Transcript of Investigatory Project =) V. Significance In finding a cure for the said problem‚ we conducted a research and we found out that there are natural compounds that can contribute in treating these kinds of problem. Natural compounds that are used for making soap are more appropriate than chemical-based products. I. Introduction II. Abstract III. Statement of the Problem This study determined the effectivity and practically of 4 Season Fruits in making a homemade facial soap. It sought
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are Bases on the scale have a pH ranging from 8-14. Bases are high in pH‚ low in hydrogen ion and high in hydroxyl ion. Bases have a bitter taste and a slippery feel. They dissolve in water and are also an electrolyte. Examples of bases are sodium hydroxide‚ and cleaning produces. Solutions that are Neutral have an equal amount of hydrogen ion and hydroxyl ion. An example of this is blood. Hypothesis It is assumed that products 1-2 are acids‚ product 3-8 are neutrals and products 9-20 are bases
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Cuprammonium Rayon threads from Filter Paper AAKASH NARAYAN XII-B DON BOSCO SCHOOL i.n.d.e.x 1. Objective 2. Certificate 3. Acknowledgement 4. Apparatus 5. Chemicals 6. Summary 7. Introduction 8. Procedure 9. Precautions 10. Bibliography o.b.j.e.c.t.i.v.e To make Cuprammonium Rayon Threads From Filter Paper c.e.r.t.i.f.i.c.a.t.e This is
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Experiment 9 and 10: Volumetric/Vinegar Analysis Abstract: The goal of the experiment that was conducted was to figure out both the molar concentration of NaOH and the standard mole ratio of the NaOH solution. In order to find the concentration of the NaOH solution‚ volumetric analysis was used. In volumetric analysis‚ a titration mechanism was utilized in order to find the reaction that the base will end up having with KHC8H4O4
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that it firm hydroxide ions instead of hydrogen ions. We can write OH- instead of hydroxide ion. All alkali is bases but not all bases are alkali. However a base is normally a metal oxide or hydroxide. If the base is soluble in water‚ it is given a special name alkali If people know the properties of acids and bases‚ they could make it in a better possible way. Properties of Acid and Bases Acid | Base | Acids release a hydrogen ion into water solution. | Releases a hydroxide ion into water
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The rate of reaction between sodium thiosulphate and hydrochloric acid Candidate name: Yeo Jin Kim (Kimberly Kim) Candidate number: 000791-021 Teacher: Yitao Duan 1.0 Aim The aim of this experiment is to investigate the changing of concentration effect the rate of reaction between sodium thiosulphate and hydrochloride. 2.1 Chemical Equation 2.0 Raw data 3.2 Qualitative Data 2.1.1 Before the experiment Substance | Color | State | Smell | Hydrochloride (HCl) | Colorless
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