; The next part is background information of the experiment.It will help readers to realize the scientific concepts and the importance of the assay. A quality laboratory report ends with an insightful conclusion that convincingly explains why the findings matter. And recording the data each time. Experimental errors could possibly be as follow:NAOH was lost to splashing before the end point was reachedBurette may have been contaminated with some other solution other than the one being testedReading of the burette may have been offSome sir bubbles would have been there in the nozzle of the buretteContamination of samples may interfere with the titrations resultsThe amount of the acid added to the base would be more than requiredA few steps can be taken to avoid the experimental errors such as: Reading of burette should be to 2 decimal places approximation for higher accuracyTake readings at eye level to avoid parallax errorsTake care when adding, mixing, or cleaningUse 0.10 mL increments instead of 0.50 mLUse burette with a narrower tube can be usedExtension6. Students looking for free, top-notch essay and term paper samples on various topics. The point of chemical equivalence is indicated by a chemical indicator or an instrumental measurement. If we take an overview of the reaction, the protons from the HCl moved to the NaOH or the HCl donated H+ ions to the solution and NaOH gave OH- ions to the solution. You can get your custom paper from our We use cookies to give you the best experience possible. Sorry, but downloading is forbidden on this website. Determining the density of a water/ethanol mixture. I had approximated with my bare eye and was not consistently exact. Then using the coarse adjustment knob we rose the body tube to its highest fixed position. Crucial aspects of a lab report are the discussion By continuing well assume youre on board with our cookie policy, Your Deadline is Too Short? on. 9. Which of the following is a good example of a sentence you would find in the Discussion section of a lab report? This should be no more than one paragraph. 550 words(double Discussion and Conclusion. What is the Structure of Such Work? All the content of this paper is his perspective on Microscopy Lab Report and should be used only as a possible source of ideas. I then drew a calibration curve from the data given on page 17 of my Laboratory Manual. Then weighed an empty 250ml Erlenmeyer flask. I then determined the density of the solution by taking the mass of solution and dividing it by the volume of the solution. a. Introduction Our customer support team is available Monday-Friday 9am-5pm EST. Don't use plagiarized sources. Start this chapter by reiterating your research problemand concisely summarizing your major findings. This paper is written by Sebastian He is a student at the University of Pennsylvania, Philadelphia, PA; his major is Business. a. For example, one gram of lead and one ton of lead have the same density. also offered here. Don't use plagiarized sources. I then compared my density to the chart given, looking for a similar density. I placed the cylinder and water on the balance and recorded the mass to every 0.1g. I used only one type of metal for this part of the experiment. I determined the total volume of metal in the cylinder by subtracting the volume of water from the volume of water plus metal. Essay on Density Lab Report Density is defined by its mass per unit volume, and is most often written in mathematical terms as; d = m / v Mass is usually given in grams, g, and And as a result a salt (NaCl) and water were formed. By continuing well assume youre on board with our cookie policy, The input space is limited by 250 symbols. The methods used were quiet precise. Get Your Custom Essay on Titration Lab Discussion Just from $13,9/Page. Retrieved from https://paperap.com/paper-on-light-microscope-lab-report/, Is Your Deadline Too Short? The burette and pipette have some limitations due to being less precise. I repeated the procedure twice more. This is just a sample. Then I rinsed a buret with a little of the ethanol solution and filled the buret with that same solution. Introduction: One of the most important instruments in anatomy and physiology is the compound light microscope. Government accountings foundation is fund accounting, where the government has different funds, which are. 7.It is a good idea to carry out titrations in triplicate because we get a more precise value. For instance cold water is denser than warm water; ice is less dense than both. Procedure: Don't use plagiarized sources. Recording the unknown number. Conclusion : In this lab we learned the parts and the proper use of the light microscope, and we were able to view the interception of images through the microscope, and we learned the The concept of magnification. The more the number of moles of the base is used the more number of moles are needed to neutralize. Marks and Spencer Group (M&S) is a leading retailer of clothing, foods and home-ware. However, you should ask your teacher to know what formatting style is good, for example, specific universities use APA style, but there are also many other styles popular in other universities. In all these cases, it is imperative that a lab report be factual and provide adequate summarization of findings, backed by concrete evidence. To increase the number of moles you can increase the concentration or decrease the volume. The pink color of phenolphthalein appears when the solution is neutral. Being careful not to go over the 50ml mark. Density is not a property that depends upon the amount of substance present. When using the 50ml cylinder, I filled it with water to approximately the 35ml mark. However accomplishments of school as a basic institution within. Don't Miss a Chance to Connect With Experts. Hi there, would you like to get such a paper? Dont just repeat all the data you have already reported aim for a clear statement of the overall result that directly answers your mainresearch question. The Erlenmeyer flask resisted the splashing of the solution outside the flask which would have been occurred due to swirling. In this lab the densities of unknown irregularly shaped solids and liquids was determined. spaced). From the table provided, I identified the unknown metal to be silver. For each of the three trials, I calculated the density of the solution and determined the mean, average deviation from the mean, percent precision and the range. How to write a discussion section. Get Your Custom Essay This caused the value, of the number of moles of HCl needed to neutralize NaOH, to be more accurate. The density of my unknown metal was not exact with a particular metal given inthe chart, but I kept in mind that the density of silver can vary depending of the state it is in. The discussion can start with a summary of the aims and the results (write about x-fold or % changes rather than just repeating the results) You should try to explain the results, but only within the context of the study - integrating swags of theory into the discussion is not necessary and leads to rambling reports. Then found the corresponding mass of metal by subtracting the mass of the cylinder and water from the mass of the cylinder, water and metal. The unknown metal that I was instructed to use was a chunk, therefore, I used a 50ml graduated cylinder. Then I recorded the exact volume of water plus metal and total mass of cylinder, water, and metal. Revised on 2 September 2020. Your Answer is very helpful for Us Thank you a lot! Addition of several millilitres of distilled water to the Erlenmeyer flask during titration would affect the results of titrations. Accuracy and precision of the results will be estimated, and attention will be paid to the correct use of the significant figures. The density I had obtained from the slope of the graph was 9.09g/mL. custom paper from our expert writers, Density Lab Report. The method used for determining the density of a substance depends on the nature of the substance. I added the metal to the graduated cylinder until the water level increased by approximately 2.0ml. Then, outline the main points that made you decide to take that position and do research to find evidence that backs them up. b. How about receiving a customized one? In this lab we observed the parts of the light microscopy, we identified each part and learned its functions , we also examined a few specimens under different magnifications using different objective lenses, for each specimen we started using the scanning objective then the low-power objective ending with the high- ewer objective in order to get higher magnification. Get Your Custom Essay on Microscopy Lab Report Just from $13,9/Page, We will write a custom essay sample on Microscopy Lab Report specifically for you FOR ONLY $16.38 $13.9/page. Therefore, there was an inaccuracy in reading the volume displaced from the graduated cylinder and the biuret. Success In Modern Bodybuilding EPQ Project Report, Comprehensive Annual Financial Report Breifing. However, we have outlined some of the best ones with well crafted examples to help you on how to write an impeccable lab report conclusion. Retrieved from https://phdessay.com/density-lab-report/. When writing a discussion for a lab report, your first step is to double-check the guidelines for the outline of your document. I obtained an unknown solution from the instructor. A lab report can also be used for criminal investigation by the police personnel. Repeating the procedure twice more using a clean flask and the same balance each time. By continuing well assume youre on board with our cookie policy. Then we placed the slide on the stage , Starting with the letter e sample we started using the scanning objective to observe the sample and then made drawings of it, then we switched to the low-power objective, we used the fine adjustment knob to complete the focusing . I found the slope of the line by taking two random points from the graph, performing the slope formula and finding the density. Next I weighed the flask and its contents, by placing the flask on the balance and recording the temperature of the solution. b. b). It is. Measurement of Mass, Volume, and Density through Archimedes Principle Overview: The purpose of this experiment was to measure the density of a solid and a liquid using the Archimedes principle.. School is said to be the place where learning takes place, thus pupils learning is a great accomplishments to every school. To write a discussion essay, start by taking a side on the issue you're writing about, like "Immigration is good for the country." There are no specific requirements for the discussion formatting. How to Write a Discussion for a Science Fair Project Writing a powerful conclusion shows your professor that you took your research seriously and immersed yourself in the study. Figure (d) Discussion: Using the light microscope we were able to observe the little details for each of the samples under different magnifications , we came out with that the higher the magnification the smaller the microscopic field gets, and as we increase resolution we can see more details in the specimens. PhDessay is an educational resource where over 1,000,000 free essays are collected. There are different avenues that can be pursued whenever you want to know how to write a conclusion for a lab report. You can get your It lets you understand the right place for this section in your paper and how big it should be. I turned the knob of the buret and put approximately 23.4ml of solution into the flask. Additional materials, such as the best quotations, synonyms and word definitions to make your writing easier are The purpose of this. Want to get a price estimate for your Essay? can use them for free to gain inspiration and new creative ideas for their writing assignments. Retrieved from https://studymoose.com/titration-lab-discussion-essay, This is just a sample. Remember. Dont miss a chance to chat with experts. Then recorded the total mass of the cylinder, water, and metal. expert writers, Copying content is not allowed on this website, Ask a professional writer to help you with your text, Give us your email and we'll send you the essay you need, Please indicate where to send you the sample. It's Free! I read the buret level to the nearest 0.05ml. The next big step is to write the discussion. E also were able to know that under different depth of the specimen we are able to focus on certain part of them using the fine adjustment knob. I read the buret again, to 0.05ml and recorded. Help, Use multiple resourses when assembling your essay, Use Plagiarism Checker to double check your essay, Get help from professional writers when not sure you can do it yourself, Do not copy and paste free to download essays. If you need to know the requirements for a specif In this lab, the question being investigated is, Has climate changed over time? b. (2019, Dec 05). When the color changes to the specified color, the titration has reached endpoint. Female bodybuilding has risen in popularity, but due to a lack of research and the small size of this project, only male competitors will be addressed. Then recorded the exact volume of water that was added. http://www.physicsforums.com/archive/index.php/t-70362.html, Titration Lab Discussion. First I obtained a quantity of unknown metal. Being sure to tap the sides of the cylinder to release any air bubbles. The general principle of the microscopy is that the shorter the wavelength of light used in the instrument, the greater the resolution. After observing letter e under low-power magnification we switched to the high-power objective while assuring that the illumination is at its Max . The volume of burette limited the amount of trial that were attempted and it needed to be refilled. Want to add some juice to your work? Then we observed under different magnification powers a certain number of specimens such as, Letter e, threads, and Hay infusion. The possible sources of error in finding the density of the unknown metal and liquid would have to be my consistency throughout the experiment. (2016, Aug 03). I. Deer low-power objective: we saw more resolution and more details the microscopic field decreased and got smaller as we increased the magnification.