this lab‚ sulfamic acid (a weak acid which contains one acidic hydrogen) will be used: H2NSO2OH(aq) + NaOH(aq) ( NaOSO2NH2(aq) + H2O(l) (Net Equation: H+(aq) + OH-(aq) ( H2O(l)) □ Titration is a process of neutralization □ Titration is commonly used to determine the concentration of an acid or base in a solution. □ This process involves a solution of known concentration (the titrant or standard solution) delivered from a buret into the unknown solution
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Like any titration‚ neutralization titrations depend on a chemical reaction between the unknown solution and a standard reagent. The point of chemical equivalence is indicated by a chemical indicator or an instrumental measurement. When the color changes to the specified color‚ the titration has reached endpoint. The mole ratio and volume relates the concentration of the solutions. The more the number of moles of the base is used the more number of moles are needed to neutralize. To increase the
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Title: Analysis of Vitamin C in Ribena Using Titration Aim: The objectives of this experiment were to gain knowledge on how to titrate solution and determine amount of Vitamin C in Ribena. Results Table 1: Mass of Ascorbic Acid in Volumetric Flask Mass of empty bottle (g) 21.5922 Mass of empty bottle with ascorbic acid (g) 21.6954 Mass of empty bottle (g) 21.5924 Mass of ascorbic acid used (g) 0.1002 Number of moles: (mass of ascorbic acid used)/(molecular mass of ascorbic acid) = 0.1002g/(176
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Back Titrations Question 1 A 10.0 g piece of rusty steel wool is dissolved in 200.00 ml of 1.00 M sulfuric acid. The excess sulfuric acid is determined by titration with a 0.500 M sodium hydroxide solution. 300.00 mL of sodium hydroxide is required to neutralise the acid. What was the % purity of iron in steel wool? Question 2 A 3.145 g sample of a certain lead ore containing lead(II) carbonate‚ PbCO3‚ was heated gently with 25.00 mL of nitric acid of concentration
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4 Titration Curve of an Amino Acid pH Simple amino acid Acidic amino acid Basic amino acid 7 OH- equivalents Objectives: A) To determine the titration curve for an amino acid and B) to use this curve to estimate the pKa values of the ionizable groups of the amino acid and the amino acid’s pI. Introduction: A titration curve of an amino acid is a plot of the pH of a weak acid against the degree of neutralization of the acid by standard (strong) base. Consider the ionization
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Introducton : The most common macromolecules found in living organisms are carbohydrates ‚ lipids‚ proteins and nucleic acids. Briefly‚ the meaning of macromolecules is that they normally contain two or more molecules in them and their main functions are to store energy‚ information and much more. Most foods are known to be combinations of macromolecules. While some of these compounds can be detected by taste tests‚ many cannot. Scientists then use certain tests to determine the presence of
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Baking Soda and Vinegar Rocket All the materials you will need are very simple house hold; scissors‚ balloon‚ vinegar‚ baking soda‚ rubber band‚ empty bottle‚ clear wrap‚ straight pin‚ marker‚ thin piece of wood‚ drinking straws‚ and duct tape. One of the first steps is to make the rocket fuel the key component in this rocket. I began with placing ¼ or 1/3 of vinegar in a normal size bottle‚ after that you will make the baking soda bomb. You take a piece of clear wrap and place a good amount of
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An investigation into the total acid content of assorted brands of lemon and lime soft drink Abstract: The aim of this experiment was to determine the total levels of carbonic acid concentration in 3 differing brands of lemon and lime soft drinks. Research Question: Does the acid content in three different lemon and lime flavoured soft drink brand differ significantly? The purpose of this investigation is to calculate the total acid content within different brands of lemon
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solution* Balanced equation for hydrochloric acid and calcium hydroxide: Ca(OH)2 + 2HCl → CaCl2 + 2H2O Qualitative Data: The dark pink color the indicator gave it immediately vanished after a specific amount of Hydrochloric Acid was added by titration into the solution of Calcium Hydroxide. Due to this being an exothermic reaction‚ it has been assumed that the temperature of the reaction had increased. DCP2: Averages for the ∆volume: (VfVi) Given: See chart above. Unknown: Average the Volume
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Determination of KC of Iron(III) Thiocyanato by Spectometry Theory: This study uses the method of measuring the equilibrium constant‚ Kc‚ for solution made of different initial reactant concentrations to determine the Kc for the reaction of iron(III)) and thiocyanato. The formula: Fe3+ +SCN- ⇔ FeSCN2+ The concentrations of the three substances at equilibrium will be determined by the stoichiometry of the reaction and the stoichiometric determination of the concentration of the complex AB.
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