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I simply subtracted the mass of the empty flask and rubber stopper from the mass of the full flask and rubber stopper. A sample equation would be This same method was used to find the volume of water in the flask. I subtracted the intial amount of liquid in the buret from the final amount of liquid in the buret.
This difference was how much liquid was dispensed. An example would be In order to find the density, I simply divided the mass found by the volume found.
To find the average density, I added the three densities I found, then divided that total by three to find the average.
The equation for the water was 0. Precision was found by taking the absolute value of the highest density minus the lowest density, dividing that difference by the average density, and then multiplying that answer by For example, the precision for the water was found by this equation: This gave me an answer of Finally to find the error, I found the absoulte value of my measured density minus the actual density.
With my data, my equation for the water was 0. My accuracy was very high, but my precision was not quite as good.
A precision of However, my accuracy turned out to be very high, as my error was very low. It seems that I was lucky to have gotten such good accuracy with bad precision.
My data from the unknown substance turned out incredibly well. My precision was 1. I assume 0 ppt would be perfect precision, so 1. My accuracy was also high, as my error was only 0. Some of my error can be accounted for by a leak in my buret.
A few drops of the liquid inside seemed to drip out from right above the bottom where it was supposed to come out. Also, I may have gotten finger prints on the flask, which would have added a slight bit of extra weight that could throw my calculations off.
Therefore, I should be even closer to the actual density. In the end, my data was fairly accurate with the actual data, so the experment was a success. This academia was first published 25 Sep and last revised 13 Feb He scrapbooks yonder every minute or three.
Next 18 Sep Introduction: 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 volume is given in cubic centimeters, g/cm3, or, grams per milliliter, g/initiativeblog.comy is not a property that depends upon the amount of substance present.
For example, one gram of lead and one ton of lead have the same density. Density Determination Lab Report. Period 4 Lab #1: Density Determinations for Solutions Theory: The density of a sample of matter is very useful when trying to find the identity of an unknown substance.
The units of density are quoted in (g/mL) for liquid samples of matter. For that reason if the volume is known of a liquid, determining its density .
Below is a free excerpt of "Density Lab Report" from Anti Essays, your source for free research papers, essays, and term paper examples. Period 8 Lab Report Density of Liquids Statement of the Problem: • Which liquid has the greatest density and which has the lowest density?
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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 volume is given . Essay Density Lab Report and Understanding Density, several experiments were performed to find density of regularly shaped objects, irregularly shaped objects, liquids and gasses.
An additional experiment was done to find the specific gravity of a sampling of liquids. This lab contains several mass and volume measurements and to use these measurements to determine the density of water, an unknown liquid and an unknown solid. To find the density of these unknown factors you take their mass and divide it by the volume and that that equals their density.
After the /5(2).