Experiment 1: Neutralization of Acids and Bases In this experiment, you will leam how to properly…
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Question “Experiment 1: Neutralization of Acids and Bases In this experiment, you will leam how to properly…”
Answer
Initial results of the litmus test
It contains pure water, so the orange-coloured neutral litmus strip will change to very light green Nd pH.
It contains a mixture of 0.5g sodium bicarbonate with 100ml of water. Because it is the basic solution in nature, the pH will be higher than 7.7. The colour of litmus turns to green when the pH drops to 7.8.
It contains vinegar, which is an acid. The pH of C will be between 7 and 3 so the colour litmus will change from dark orange to dark orange.
Table 3 neutralisation
1 ml vinegar in solution b won’t cause colour change. It will stay green
2ml vinegar in solutionb won’t cause any significant colour change. Litmus will remain green in color.
Add 3ml vinegar to the solution B. This will initiate the neutralization reaction. The colour change toward light green would begin.
The solution b will turn the color of the litmus pale green by adding 4ml vinegar.
5ml Vineger to Solution b will cause litmus to turn a very pale green colour. The Ph of the solution would then be 7.
Post lab questions
2) Neutralization reaction – This is the reaction between acid and base that leads to the formation salt and water.
The neutralization reaction can be used in many laboratory settings, such as acid base titration with phenolphthalein indicators and calculation of the normality or molecularity of solution.
After its use, some strong acids are also neutralized before being drained out.
4) The solution of beaker A was neutralized at pH 7. This is because acid and base can both be cimpcomple at this pH.
5) Strong sodium bicarbonate solution would have an initial pH of around 8.1. For neutralization, a large amount would be required because of the weak concentration of hydroxyl.
Conclusion
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