What is khp naoh

However, this, being only 0. This means that due to systematic error, my accuracy has fallen by 9. The deviation in the volume, however, is not the only indicator of noticeable systematic errors.

The volumes of NaOH used up show significant fluctuations. For example, in trial 1, I used The difference between these sets of data indicates that the systematic error of allowing the KHP solution to become too pale resulted in strange fluctuations. These fluctuations caused the 0. The percentage uncertainty calculated of the concentration of NaOH was 2. Therefore, due to flaws in raw data values taken from systematic errors, there has been a deviation in uncertainty too, indicating the impact of methodical flaws.

The uncertainty of 2. Overall, the data obtained, although not completely inaccurate, have not been as accurate as it could have been. These errors were avoidable. If we have helped you, please help us fix his smile with your old essays Introduction Aqueous calcium hydroxide, also known as lime water is used to verify the presence….

Introduction: An acid-base titration is a procedure that can be conducted to determine the concentration…. Introduction Vinegar is a common household item containing acetic acid as well as some other….

Tutor and Freelance Writer. Science Teacher and Lover of Essays. Article last reviewed: St. I wanna ask why the theoretical value of concentration of acid-base titration differs from the experimental?

What I know is due to various errors which tend to happen when conducting an experiment such as contamination of the sample used impurities also external factor like temperature and humidity which results the sample to react with the atmosphere air. Skip to content. Find out More. Ace-tylsalicylic Acid Aspirin Titration Lab Aspirin originally a legally restricted brand name owned by Bayer for its brand of ace-….

Titration of Vinegar Lab Answers Introduction Vinegar is a common household item containing acetic acid as well as some other…. Newest Oldest Most Voted. Inline Feedbacks. Brandon Topotsa. Three more assignments will appear here as the semester progresses. Stoichiometry and Solids. When dealing with solids that one can weigh on a balance, determining the number of moles in a particular sample is simply:. Mass in grams of the substance. Molar mass of the substance.

Stoichiometry and Solutions. When dealing with solutions, one is usually concerned with concentration. Concentration is not an unfamiliar term, in that in the geographical and political context the term "people concentration" is often used in allocating funds and describing population densities in various areas of the continent. While the number of people in two given regions may be the same, the area of the regions may be vastly different, and thus represent different concentrations.

In the chemical world concentration is usually expressed in terms of the quantity of a substance moles per liter of solution and is called Molarity M.

Volume Liters of the solution. More often abbreviated to:. Determining the Molarity of a Sodium Hydroxide Solution. The reaction between an acid and base produces a salt and water, something that you may have heard before. In the reaction that you will be investigating, the acid is potassium hydrogen phthalate KHP , and the base sodium hydroxide NaOH.

As long as a reaction goes to completion, if one knows the following information:. This is the essence of the technique called quantitative chemical analysis. In this experiment we are going to determine the concentration of a sodium hydroxide solution by adding it to a known amount of KHP.

The process used to carry out this addition is called titration. This is where one of the reagents in our case NaOH is added slowly from a buret to a known quantity of the other reagent KHP. The point at which sufficient reactant has been added to just complete the reaction is called the equivalence point. This is what we would like to determine since at this point we have added sufficient amount moles of NaOH to react with the entire amount moles of the KHP.

A method to determine this visually, is to add a dye referred to as an indicator that changes color at or extremely close to this point. The point at which the indicator actually changes color is referred to as the end point. As far as we are concerned at this stage, the end point and the equivalence point are the same. Later you will see that the criteria used for choosing an indicator in a particular titration is, how close the indicators end point where it changes color is to the equivalence point of the titration.

Calculating the Molarity of the Sodium Hydroxide Solution. You know the mass in grams of the KHP used in the titration:. Mass in grams of KHP.