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A titration experiment or procedure uses a reactant to find the quantity of a particular substance dissolved in a solution. The reactant is added slowly and a color change occurs and disappears when stirred. The end point is found when the slightest hint of color remains. The amount of reactant used is measured and used to calculate the concentration of the substance being tested for.
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∙ 14y ago
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How would you know the Normality of HCL?
This can only be established by accurate standard titration with sodium carbonate (p.a.)
Would the reported molarity of the vinegar sample be affected by an error in weighing?
Yes, you could possibly have errors in your data about the molarity of a vinegar sample during a titration experiment if there was an error made during weighing.
What problem will happen if you use hydrochloric acid instead of sulphuric acid in titration?
It would change your results because concentrated HCl is more acidic then H2SO4, therefore, there would be a larger change in pH quicker.
How much percent does it take so you know the experiment works?
You have to calculate the amount of error that can be expected in your experiment, and if the results exceed the experimental error, they can be considered to be meaningful. We would really have to discuss a specific experiment to see how this principle works.
How would your results have differed if you had over titrated added Na OH beyond the endpoint?
Due to the addition of more NaOH than was necessary to reach the endpoint of the titration, the recorded data would show NaOH at a higher concentration, and whatever other chemical in solution (the analyte of the titration) to appear at a lower concentration. If recording the amount of mL of the titrant added to the analyte to reach the end-point of the titration, it would cause the recorded mL needed to be higher than the true amount needed.
What would be an approprite way to display the results of the experiment outlined?
A concise way to display the results of the experiment would be to create a table or a graph showing the key data points, such as the average values, standard deviations, and any statistically significant findings. Additionally, a brief written summary highlighting the main outcomes and conclusions of the experiment would help readers interpret the results effectively.
What would make the results of this experiment reliable?
performing the experiment multiple times
Why do scientists take measurements in a standard way?
It is a fundamental requirement of scientific research that experiment can be replicated so that other experimenters can validate results. This would be impossible unless scientists used standard units and methods of measurement.
Why would repeating an experiment be a good idea?
By repeating the experiment and getting the same results it validates those results.
How would you know the Normality of HCL?
This can only be established by accurate standard titration with sodium carbonate (p.a.)
How can you tell if the conclusion from an experiment is valid?
If you documented all your results, had a partner, had a witness, completed the experiment many times with the same results, and tested the experiment on the proper things then this would be good validation.
Would you choose a longer for this experiment to obtain more precise results?
No, I would just expect you to undertake the experiment with more care.
What is the standard used to compare in an experiment?
That would be the control....i think....:)
Is a prediction a statement based on the results of an experiment?
No, I believe that would be a hypothesis. A prediction would be forecasting the unknown without the assistance of the results.
Why air bubble is removed burette get before carrying out tit-ration?
If you leave an air bubble in the tip of the burette, you would artificially increase the titration volume needed. This would introduce an error into your calculations and would cause your results to be inaccurate.
What numbers of replications of an experiment would make the results most conclusive?
12 is answer
Is the standard of comparison in an experiment cannot change?
Ambiguous question, but I'll try to give a meaningful answer.In any given experiment, the standard of comparison should not change, but the experiment can be changed if some element becomes evident and the experimenter wishes to explore the unexpected preliminary results.Any elements that are used as a baseline for comparison would be called a control and should not change to prevent the results from becoming meaningless.
