Silver nitrate could easily be used to test for sodium bicarbonate since it causes the chemical to turn brown. b.) Windex- turns orange with BTB and red with phenolphthalein- base Dish soap- turns yellow with BTB and red with phenolphthalein- base Bleach- turns orange with BTB and purple with phenolphthalein- base Scrubbing Bubbles- turns blue with BTB and gray with phenolphthalein- acid c.) The solution contains no vinegar or a very small amount of vinegar because a pink color indicates
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using table sugar instead of salt. The term non-electrolyte refers to a substance which dissolves in water but does not allow electrical conductivity. As the sugar dissolves‚ the light did not light up. So sugar is a non-electrolyte. Some acids and bases are also strong electrolytes. The next example was
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the molarity of an acid or a base. In the other words‚ it is also consider as acid-base neutralization reaction (Darrell D. Ebbing 1976). A chemical reaction is set up between a know volume of a solution of unknown concentration and a known volume of a solution with a known concentration. The relative acidity or basicity of an aqueous solution can be determined using the relative acid or base equivalent. An acid equivalent is equal to one mole of ‚ and an base equivalent is equal to one mole
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______________________________ Aim of the experiment: The aim is to determine the water of crystallization of a diprotic acid by titration against a base. Background: Many substances that we use are either acidic or basic. Because acids and bases can neutralize each other‚ that gives us a strategy for finding the unknown concentration of an acid or base when we react with bases in a stoichiometric process we call neutralization. Generally the products of these reactions are some type of salt and water. H+(aq)
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Name: |Date:| Exp 1: Observations of Chemical Changes|Lab Section: | Data Tables: Part 1: |Chemicals|Well No.|Observations of the Reaction| A.|NaHCO3 + HCl| H12|White and bubbled slightly and settled down to smaller smaller bubbles| B.|HCl + BTB| H11|Golden yellow; looked darker under the black paper| C.|NH3 + BTB|H10 |Dark blue| D.|HCl + blue dye| H9|Greenish color| E.|Blue dye + NaOCl| H8|Blue and lighter than NH3+BTB solution color| | with the 1 drop of HCl| H8|Turned blue green
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Determining the Molarity of Acetic Acid in Vinegar Abstract This experiment was done to determine the molarity of acetic acid in vinegar. The acetic acid in vinegar was titrated with a strong base sodium hydroxide to determine the equivalence point of this chemical reaction. The indicator phenolphthalein was used because the moment it changes color is on the basic side of the pH scale. To insure the experiment was done with the most accuracy‚ the two conductors of this experiment took three
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Laboratory ReportTitle: Observations of Chemical ChangesDate: 9/9/13Name: Purpose: The purpose of this experiment is for the student to gain knowledge and experience regarding how avariety of chemicals react to one another. In addition‚ the student should also gain a betterunderstanding of the household chemicals that they use in their day to day lives.Procedure:Observe the chemical changes that occur by mixing a list of chemicals (provided in the lab manual).Add 2 drops of the first chemical
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THE PH SCALE Learning Objectives: To distinguish between acidic‚ neutral and alkaline solutions using pH values. To classify solutions of equal concentrations in terms of acid or base strength using pH values. To understand how the appropriate use of Litmus paper‚ Universal Indicator and pH meter can give an account of different degrees of accuracy in the measurement of acidity or alkalinity of substances. 1) Define what an Acid is. Give five characteristics of acids. An acid is a chemical
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and contrast wired and wireless LANs. What unique concerns must be addressed by the designer of a wireless networks. Answer 1:- Introduction: LAN is a local Area Network and a computer network covering a small physical area‚ like a home‚ office‚ restaurant or small group of buildings‚ such as a school‚ a college or an airport. Although a LAN can be used as an isolated network to connect computers in an organization for the sole purpose of sharing resources‚ most LANs today are also linked to a wide
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Chemistry Coursework – Titration Background Science A titration is the neutralisation of an acid or an alkali. To achieve this‚ one must be added to the other in a specific amount‚ strength and concentration. A substance is neutral when its pH is 7. It is most acidic closer to 0 and is most alkaline closer to 14. 28492453194050 0 7 14 595423979670
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