Chemistry Lab Report Essay Example

Chemistry Lab Report Paper Initial hypothesis: A 1 Ox eluted potassium dichloride solution have an expected spectrophotometer reading of 1. 000 while a xx diluted potassium dichloride solution have an expected spectrophotometer reading of 0. 200. The result we obtained correlates strongly to the hypothesis, albeit with a spectrophotometer reading error reaching as high as +0. 07 which is still in the acceptable range. We obtained 1. 066 spectrophotometer reading for our xx diluted potassium dichloride solution and 0. 224 spectrophotometer reading for our xx diluted potassium dichloride solution. Questions: . What is the magnitude of parallax error indicated on each piece of volumetric glassware? If the mark on the volumetric is exceeded, is it considered parallax error? The magnitude of parallax error indicated on each piece of volumetric glassware is low because volumetric glassware are made to measure volume of liquid very accurately with a given marker. If the mark on the volumetric is exceeded, it is be considered parallax error due to the position of eyes and the angle towards the mark on the glassware of the users. Parallax error means using he instrument is incorrectly but still gets error which are not the true value. [5] 2. Calculate the percent error when u fill the moll volumetric flask to the mark and add another Mil to cause the meniscus to exceed the mark. Should you discard your solution if u accidental exceeded the mark by 0. CM? Percentage value-ObservedExpectedx100 Percentage XIII Percentage error -0. 2% No, we shouldnt, as referred to reference 4, Volumetric glassware are only accurate when they are at their calibration temperature. Hence temperate affects the accuracy of the volumetric flask. We will write a custom essay sample on Chemistry Lab Report specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Chemistry Lab Report specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Chemistry Lab Report specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Based on the percentage error, Mil is not equal to LLC where it shows slightly inaccuracy of the volumetric flask. Volumetric flask normally works accurately under ICC. [4] 3. Are beakers, conical flask and laboratory bottles with volume markings considered volumetric glassware? Why? No, because volumetric glassware are specialized pieces of glassware which are used to measure volumes of liquids very precisely and accurately in laboratory works.

Art Evaluation Essays

Art Evaluation Essays Art Evaluation Essay Art Evaluation Essay Explore-at the start of this project I looked at the artists Karl Blosfeldt and Peter Randall Page. Karl Blosfeldt was a German photographer who took photographs of natural forms. Peter Randall Page is a British artist who takes natural forms and uses the textures and colours to make interesting sculptures. I think I presented my work which included my botanical drawing of kiwi, my flower observation drawing and other pieces in an eye-catching and interesting way. Create. I experimented with my collages by using low relief and by using materials which have the colours of natural forms like brown tape. With my drawing I used tried to show the texture of the object I was focusing on.The materials I used were brown tape, cardboard (thick and thin) and tissue paper. The techniques I used were slotting, using low and high relief. Evaluate. At the start I think I did not really annotate my work but now i think I have fully annotated my work at have improve the pages at the start of my book. I think I have planned my work well because I put thought into how I am going to organise a page and my ideas. My drawings show that I have reflected the styles of the artists work because I have taken their work at incorporated several ideas into my own work. I have reviewed my work my putting a footnote at the bottom of the page. The footnote includes my opinion of how well I did something or what I liked about something. I presented my work in a way so that the people looking at my work can read my writing but the way it was put on the page is bold and visually good. Understand. I think that my work does show a link to the artists work, like I said before in the evaluate section, I have incorporated their styles and put it into my work. My final piece of work did turn out as expected because it had different shapes to show the textures on a real life form. I am particularly pleased with my leave structure as it was one of three parts which look like a part on a real life form. I like the colours I used for the leave structure and I like how the tissue paper gives more natural texture. The changes I would make on my overall structure would be to have a more brighter area because most of structure it pretty dark, so that is how I would improve it. The best bits of making this structure was the painting because it was quite relaxing and you take your time. The worst bit would have to be putting together the structure in the first place because cutting out shapes from the cardboard was really hard and took ages. Feedback. No, I dont think there was anything in the project that I did not understand. I liked the theme and the project because it involved different techniques like painting, drawing and making collages. If I designed the project the work that I would like to do more botanical drawing because I would like to improve on my shading. I think that the project is good as it already is.