Thermometric Titration Experiment with Sodium Hydroxide and Sulfuric Acid
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Questions and Answers

What is the purpose of the thermometric titration experiment described in the text?

  • To compare the temperature changes between a strong acid and a weak acid
  • To determine the concentration of the sodium hydroxide solution using a known concentration of sulfuric acid (correct)
  • To investigate the temperature changes when mixing different volumes of an acid and a base
  • To study the heat changes during a reaction between a strong acid and a weak base
  • What volume of sodium hydroxide solution was transferred into the styrofoam cup at the start of the experiment?

  • 50 cm^3
  • 10 cm^3
  • 25 cm^3 (correct)
  • 20 cm^3
  • What was the concentration of the sulfuric acid used in the experiment?

  • 1.0 mol/dm^3
  • 0.1 mol/dm^3 (correct)
  • 0.01 mol/dm^3
  • 5.0 mol/dm^3
  • At what volume of added sulfuric acid did the temperature change reach its maximum?

    <p>15 cm^3</p> Signup and view all the answers

    What was the purpose of plotting a graph of temperature against volume of acid added?

    <p>To identify the endpoint of the reaction between the acid and the base</p> Signup and view all the answers

    What was the students' task in the experiment?

    <p>To distinguish between a strong acid and a weak acid in the experiment</p> Signup and view all the answers

    Study Notes

    • The text provides a detailed explanation of a thermometric titration experiment involving sodium hydroxide and sulfuric acid.
    • The experiment involves transferring 25 cm^3 of sodium hydroxide solution into a styrofoam cup, adding 5 cm^3 aliquots of 0.1 mol/dm^3 sulfuric acid, and recording temperature changes.
    • The purpose of the experiment is to determine the concentration of the sodium hydroxide solution using a known concentration of sulfuric acid as the standard solution.
    • Thermometric titration involves using heat changes to determine the endpoint of the reaction.
    • Thermometer readings were taken after adding 5 cm^3, 15 cm^3, and 25 cm^3 of sulfuric acid, showing temperature changes of 27.5°C, 33.4°C, and 28.9°C respectively.
    • The data collected from the experiment is used to fill in a table for analysis and calculation, earning marks for accuracy.
    • A graph of temperature against volume of acid added is plotted using the data, with specific scales for the x and y axes to accurately represent the data points.- The experiment involved adding sulfuric acid to a base in a styrofoam cup to observe temperature changes.
    • Temperature readings were noted at different points when adding varying amounts of acid to reach the neutralization point.
    • The experiment involved drawing lines of best fit on a graph to show temperature changes during the reaction.
    • The students were tasked with distinguishing between a strong acid and a weak acid in the experiment.
    • The experiment also involved calculating the number of moles of sulfuric acid and sodium hydroxide used in the reaction.
    • Various calculations were carried out based on the experimental data collected during the neutralization reaction.
    • The experiment also focused on understanding different types of chemical reactions such as combustion, halogenation, polymerization, and hydrogenation.
    • Students were required to draw structural isomers, balance chemical equations, and understand the mole concept in chemistry.
    • The text also discussed the properties of subatomic particles, isotopes, and chemical bonding.
    • Practical tests were explored to identify gases produced in reactions and distinguish between different compounds.

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    Description

    Explore a detailed explanation of a thermometric titration experiment involving sodium hydroxide and sulfuric acid. Learn how to determine the concentration of the sodium hydroxide solution using a standard solution of sulfuric acid. Analyze data, calculate moles of reactants, and understand different chemical reactions and concepts like structural isomers and chemical bonding.

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