Household Acids and Bases.Lab Report Assistant Assignment Paper I feel that some the chemicals that were neutralized combined well with the BTB resulting in their chemical reaction to be neutral as it is neither acidic nor alkaline and some did not blend because it may have been a weak acid it does not dissociate fully when it is dissolved.Įxercise 3: Testing the pH of Household Productsĭata Table 3. Did any of the reaction not result in a color change of the BTB indicator from yellow (acid) to blue (base)? Explain why neutralization may not have occurred in one or more reactions. In all the chemical reaction performed in Exercise 2, neutralization occurs when the pH is neutral (7) or basic (>7). So, pH will be >7.Lab Report Assistant Assignment Paperĭ. On the off chance that you are titration a frail acid with a solid base, the items will be a weak base and an exceptionally weak acid. There is no motivation behind why the pH ought to be seven at the equivalence point except if the acid being titrated is a strong acid, and the base from the Burette is a solid base. Include a discussion of equivalence point pH values for strong versus weak acids. Is the pH at the equivalence point always equal to 7? Explain your answer based on your experimental observations. The neutralization of a strong acid and strong base has a pH equal to 7.Ĭ. What factors determine if neutralization occurs during an acid-base reaction?Ī neutralization reaction is when an acid and a base react to form water and a salt and involves the combination of H+ ions and OH- ions to generate water. But I think the most effective way was to use the pH test strip to determine the pH level to see if Neutralization has happed.Lab Report Assistant Assignment Paperī. While looking at the reaction in the wells, you could see the BTB reacting with the chemical the color change can indicate the Neutralization has happed. Neutralization has happened when the resulting solution’s pH will be less than 7. What information can be gleaned from each well based on the color of the BTB indicator after each reaction has occurred? How do you know if neutralization has occurred? Cite examples from the well plate reactions to support your answer. Questions Lab Report Assistant Assignment PaperĪ. The conjugate bases of D and E are NO3-and OH What are the conjugate acids and conjugate bases of questions D and E?Lab Report Assistant Assignment Paper
Write the chemical equation of mixing ammonia (NH3) with water.į. Write the chemical equation of mixing nitric acid (HNO3) with water.Į. It’s useful to do this whenever you want to know if any chemical is acidic or basic.ĭ. To figure out the pH value we must add the BTB, green means it’s natural, blue is base, and yellow is acidic. What is the value of using BTB as an indicator? When might BTB be a better choice than pH paper?
With the pH paper, you would be able to determine the substances pH value number and not just if it’s acidic or basic.Lab Report Assistant Assignment PaperĬ. You could find if it were a weak or strong acid or base by looking at the pH paper. What is the value of using pH paper as an indicator? I looked for OH- or H+ in the formula and if it was an H+ than the chemical is most likely acidic and OH- would be basic.ī. When you created hypotheses to guess whether each chemical was an acid or base, what specifically did you look for in the chemical formulas?Lab Report Assistant Assignment Paper Hydrochloric acid Lab Report Assistant Assignment PaperĪ. Data Collected from Exercise 1.Īcid or Base?Lab Report Assistant Assignment Paperġ1D Lab Report Assistant Assignment PaperĪcid Lab Report Assistant Assignment Paper The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent to an instructor.Lab Report Assistant Assignment PaperĮxercise 1: Using pH Paper and the Indicator Bromothymol Blue (BTB)ĭata Table 1. The Lab Report Assistant is simply a summary of the experiment’s questions, diagrams if needed, and data tables that should be addressed in a formal lab report.
This document is not meant to be a substitute for a formal laboratory report.
0 kommentar(er)
