Design Lab #17: Reaction Rate - Calcium Carbonate & Hydrochloric acid Design D: Introduction: In this experiment calcium carbonate will be put into a flask and mixed with hydrochloric acid to produce calcium chloride‚ water and carbon dioxide. The formula for this reaction is: CaCO3(s) + 2HCl(aq) → CaCl2(aq) + CO2(g) + H2O(l) Purpose: The purpose of this experiment is to determine how the surface area of CaCO3(s) affects the rate of
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The Dissolving of Solid Sodium Hydroxide in Water Procedure: 1. Measure out approximately 200 mL of distilled water and pour it into the calorimeter. Stir carefully with a thermometer until a constant temperature is reached. Record the volume of water and the constant initial temperature of the water on your data table. 2. Place a plastic measuring trough on top of the digital balance‚ and then zero the balance (press the tare button) so that the mass of the trough will be "ignored" and
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Worked solutions to student book questions Chapter 4 Analysing acids and bases Q1. Antacid tablets should normally be chewed before they are swallowed. Why? A1. Antacid tablets are normally chewed to provide a larger surface area for faster reaction with stomach acids. Q2. A laboratory test to determine how much hydrochloric acid is neutralised by a brand of antacid does not give a complete picture of its effectiveness in the stomach. What other factors might be important? A2. Other factors to
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Objective: To determine relative molecular mass of a soluble base‚ X2 CO3 by carrying out an acid-base titration with the following reaction ‚ knowing the amount of hydrochloric acid used and the amount of substance Z used. Hypothesis: The X in substance Z is a group 1 element because substance Z is a soluble metal carbonate and would most likely be sodium or potassium because these elements are commonly used. Materials 100 cm3 beaker‚ 250 cm3 beaker‚ 250 cm3 volumetric flask with stopper
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when Sodium Benzoate is acidified to Benzoic Acid. Theory: (2 points) Sodium Benzoate is a common food preservative found in jellies‚ jams‚ sodas‚ fruit juices‚ etc... Its acid‚ Benzoic Acid‚ is an organic preservative that stops the growth of bacteria‚ yeasts‚ and molds. Reaction: (3 points) Reaction: sodium benzoate + hydrochloric acid ( benzoic acid + sodium chloride Amounts: 2.00 g Sodium benzoate‚ 5.0 mL 3M hydrochloric acid
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chemical reaction‚ thus‚ of a chemical change. Materials Crucible tongs Evaporating dish Glass rod Test tubes Test tube rack Thermometer Analytical balance Magnesium ribbon pH paper 1M copper (II) sulfate Iron metal 6M hydrochloric acid Procedure Magnesium and oxygen test A small strip of magnesium metal is held on one end with a pair of crucible tongs‚ while the other end is ignited with the flame of Bunsen burner. The burning ribbon is held over a clean evaporating
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SACKEY IB1B Topic: Acid-Base Titration Aims: 1. To use methyl orange and phenolphthalein as indicators to determine accurately the end of an acid-base titration. 2. To present titration data correctly. Observations: Table of Results Showing The Amount Of 0.12 Mol/dm3 Hydrochloric Acid Required to Neutralise 25cm3 Of Sodium Carbonate of an unknown Concentration Using Methyl Orange Indicator. Pipette Solution | Sodium Carbonate | Mol/dm3 | Burette Solution | Hydrochloric Acid | 0.12Mol/dm3 |
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Introduction: A balanced chemical equation has reactants and product that has to represent a formulae. The amount of each element‚ number needs to be the same in either side of the equation. (E.g.‚ HCl(aq)+NaHCO3(s) reacts to produce NaCl(aq)+H2O(I)+CO2(g)‚ this is the equation given for this lab). This help us view the study of Law of Conservation of Mass‚ when either side of equation is equally balanced. The calculation for formula mass helps determine if you need to convert grams to a particular
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Determination of the Empirical Formula for Zinc Chloride Objective: To experimentally determine the empirical formula for the product of the reaction between metallic zinc and hydrochloric acid by recovering the product by evaporating it to constant dry mass. Introduction: When zinc metal is reacted with hydrochloric acid‚ hydrogen gas is released and an aqueous solution of zinc chloride is produced. The zinc chloride solution when evaporated to dryness leaves a pure salt product. In order to calculate
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most common type of organic reactions. SN1 reactions can be used to make a wide variety of new compounds. In this experiment‚ t-amyl alcohol will be converted by a SN1 mechanism to 2-chloro-2-methylbutane. Safety Precautions Concentrated Hydrochloric Acid is 12M. It will cause visible destruction of tissue upon contact. Wear eye goggles at all times during this experiment. Keep HCl away from skin‚ clothes‚ eyes. Neutralize any spilled HCl with sodium bicarbonate (baking soda) and wipe up immediately
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