Nobody downloaded yet

Techniques - Lab Report Example

Comments (0) Cite this document
The purpose of this experiment was to find the mass of NaCl in an aliquot of NaCl solution, theoretically and experimentally and then compare the results. To find the theoretical mass, 6 grams of NaCl was dissolved in a beaker with 50 mL of deionized water and then analytically…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER94.3% of users find it useful
Techniques lab
Read TextPreview

Extract of sample

Download file to see previous pages Calculations performed on the changes in mass revealed that the experimental mass of the NaCl was 1.464 g. The -1.942% error between the two results was attributed to experimental errors arising from the improper use of the pipets during the transfer of the solution to the evaporating dish for heating.
The results obtained showed that the difference in the masses between the expected and experimental results to be small (-0.029 g), resulting in a relatively small % error of -1.942%. The % error was caused by systematic errors resulting from improper use of the pipet during the transfer on the 25 mL NaCl solution to the evaporating dish. Minute air bubbles might have been sucked together with the NaCl solution, resulting in a reduced amount of NaCl being heated at the end, thus lowering the final mass. The pipet used in the experiment has a precision of uncertainty of ±0.01 mL; therefore the 25 mL taken from the volumetric flask was between 24.99 mL – 25.01 mL. This uncertainty is relatively low, making the pipet’s readings relatively precise, thus reducing the chances of random errors resulting from observational mistakes during the filling up of the pipet.
a. Filling the 100 mL volumetric flask beyond the mark would lead to a lower actual (experimental) molarity. This is because adding more water will make the solution more dilute, thus lowering the molarity.
b. The density of the solution would decrease if the volumetric flask was topped beyond the mark because the density if governed by the formula Density = Mass / Volume1. Therefore, increasing the volume would lead to a subsequent decrease in the density.
a. Having the liquid level in the pipet being below the line would lead to a reduction of the mass of the NaCl obtained after the subsequent heating because the amount of NaCl pipet is less than the required amount.
c. Using the pipet to deliver the NaCl solution to ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
(“Techniques lab Report Example | Topics and Well Written Essays - 1000 words”, n.d.)
Retrieved from
(Techniques Lab Report Example | Topics and Well Written Essays - 1000 Words)
“Techniques Lab Report Example | Topics and Well Written Essays - 1000 Words”, n.d.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document
Lab report
The experiment was aiming the Allocation of attention in the visual field. Subjects were six high school students with ordinary or corrected-to-normal vision. The experiment finding supported dissimilarity on the two-stage model of attentional distribution or allocation.
8 Pages(2000 words)Lab Report
Imagery-rehearsal memory lab report
By using a chi-square statistical test, I determined whether or not my hypothesis is statistically significant. Introduction: In order to further enhance my knowledge regarding this lab report, I will incorporate pre-existing psychological information. First off, as Allan Paivio made clear in Psychological Review, imagery and verbal messages are fundamentally different in that mental processes vary with the concreteness of an image, whereas verbal information is allegedly independent of concreteness and more based off of meaningfulness (Paivio, Allan).
4 Pages(1000 words)Lab Report
120). Qualitative analysis is done to identify elements in the sample used for the experiment. For this experiment, qualitative analysis was employed to establish whether or
1 Pages(250 words)Essay
Immunological Techniques Lab Assignment
The radial immunodiffusion is a more widely used quantitative method and can be used to quantify immunoglobulins (including IgG subclasses) and serum proteins. However even though it is sensitive method the reaction time is long.
2 Pages(500 words)Lab Report
The lumber industry in Michigan was dependent on the weather due to their reliance on “good winter snowfall” (Michigan Historical Museum). Essentially it was the run off of that snow
2 Pages(500 words)Essay
The Love Lab
Dr. Gottman is at the centre of everything with his solution to couples and reality-based advice. However the story of the video starts with one and progresses with another couple, insisting that problematic married life and broken marriages are constantly on a rise in modern societies (Wilson).
4 Pages(1000 words)Essay
The results recorded were used to calculate for the derived values such that torque was obtained as 72.7 N/M and ranges between 72.1 N/M - 72.7 N/M, the brake power was obtained to be in the range 40987.46667 KW - 8370.193333 KW, the brake thermal efficiency was
2 Pages(500 words)Lab Report
Lab Report
Since 19th century scientists were aware of some unique identity of an individual which distinguish from others, like finger prints. In 1970, DNA was established as key element in human life and which makes individual as unique creature. Variability in DNA sequences among individual to individual have attracted forensic experts to develop technique based on DNA to identify individual or criminal similar to finger prints.
9 Pages(2250 words)Lab Report
Lab report
This lab report will describe the procedures followed so as to come up with the results and to determine whether Mark was the proprietor of the crime. According to some witnesses, who were neighbors to the house in question, noise of
5 Pages(1250 words)Lab Report
Lab Report
Additionally, measurement features and precision aspects of these instruments were reviewed for familiarity. Sketching and outlining drawings of this Duplo block entails a combined application of
4 Pages(1000 words)Lab Report
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Let us find you another Lab Report on topic Techniques lab for FREE!
logo footer
Contact us:
Contact Us Now
FREE Mobile Apps:
  • StudentShare App Store
  • StudentShare Google play
  • About StudentShare
  • Testimonials
  • FAQ
  • Blog
  • Free Essays
  • New Essays
  • Essays
  • Miscellaneous
  • The Newest Essay Topics
  • Index samples by all dates
Join us:
Contact Us