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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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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other polar substances! 4. Hydrophilic substances –. 5. Hydrophobic substances –. III. Acids and Bases A. An acid is any substance that increases the H+ concentration of a solution. B. Acids are proton donors 1. An acid is a substance that dissociates in solution to yield hydrogen ions (H+) 2. H+ = one proton C. A base is any substance that reduces the H+ concentration of a solution D. Bases are proton acceptors E.
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Measurement of the Heat of Neutralization of an Acid CHM 152IN CRN: February 5‚ 2000 I. Purpose of Experiment The purpose of this lab is to measure the heat released in the reaction of an acid and a base. This will demonstrate an enthalpy reaction‚ showing energy being released. II. Chemicals and Equipment The following chemicals and equipment will be utilized for the experiment: |Chemicals |Equipment
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