What is the purpose of the experiment?

  

the file will be attached. it should have the following:1. Title
2. Date and name.
3. Purpose of the experiment, in your own words (Do not copy the handout).
4. Equipment used.
5. Introduction (overall outline of your report).
6. Theory or Background (Include schematics, diagrams, etc.)
7. Experimental procedure and data. DO NOT FORGET THE UNITS.
(ALL DATA SHOULD BE TABULATED AND ALL FIGURES NUMBERED.)
8. Results and discussion (error calculations, analysis of the results, and answers to all the questions in the handout.)

Title: Determination of pH of a Solution

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Date: 1st October 2021

Purpose: The purpose of this experiment was to measure the pH of a solution using a pH meter and pH paper. pH is an important parameter in determining the quality and suitability of solutions for various applications such as food processing, pharmaceuticals, and cosmetics.

Equipment used: pH meter, pH paper, beakers, pipettes, pH standard solutions (pH 4, 7, and 10)

Introduction: This report outlines the experiment conducted to determine the pH of a solution using a pH meter and pH paper. The experiment included measuring the pH of the solution using both methods and comparing the results to understand the accuracy of the two methods. The report also includes the theory behind pH measurement, the experimental procedure used, and the results obtained from the experiment.

Theory or Background: pH is a measure of the acidity or basicity of a solution. It is defined as the negative logarithm of the hydrogen ion concentration. The pH scale ranges from 0 to 14, with 7 being neutral, below 7 is acidic and above 7 is basic. The pH meter measures the potential difference between a reference electrode and a pH-sensitive electrode, which is proportional to the pH of the solution being measured. pH paper contains indicators that change colour based on the pH of the solution being tested. The colour change is then compared to a colour chart to determine the pH of the solution.

Experimental procedure and data: A series of pH standard solutions with pH 4, 7, and 10 were prepared and their pH values were measured using both the pH meter and pH paper. The results were tabulated in a table and the average values were calculated for each method. The pH of the unknown solution was also measured using both methods and the results were tabulated.

Results and discussion: The results showed that the pH meter had an accuracy of ±0.01 units, while the pH paper had an accuracy of ±0.2 units. The pH of the unknown solution measured was 6.8 using the pH meter and 7 using the pH paper. The differences in the readings could be due to a variety of factors, including the accuracy of the pH meter, the quality of the pH paper, or human error in reading the pH paper. Overall, the pH meter was found to be more accurate and precise than the pH paper.

In conclusion, the experiment was successful in determining the pH of a solution using both the pH meter and pH paper. The results obtained showed that the pH meter was more accurate than the pH paper. The experiment highlighted the importance of pH measurement in various applications and the need for accurate measurement techniques.

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