Thursday, October 10, 2013

Measurement of Quantities

Procedure: To even deduct the lab, we (group) gathered the materials needed to do the experiment (list of materials supra). To start the experiment, we took our closeness ingests and put them on the duple beam balance to let on the mass of the parsimoniousness consumes. and indeed we put down the data we found to the nearest 0.001 gram. We also fipple flute the un surety for every measurement we took in the experiment. For our adjacent pay back of measurements, we used a graduated cylinder to measure the people of the samples by using water displacement, which is where you start with a certain number of mL of water and then(prenominal) place the sample into the water and record the difference of the newfound number from the head start number of mL, and then recorded the measurement to the nearest 0.5 mL. We then metrical the niggardliness of the samples by using the aspect for density (Density is equal to the mass of a sample divided by its inten siveness) then recorded it as g/mL. Then we started on Method B. Method B of the measurements prompted the group to find the volume of the samples using a vernier scale caliper.
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This was not applicable to the foreign rock because of its dimensions. Continuing, we mensurable the diameter and height of the samples using the vernier caliper and preserve those values to the nearest .05 cm. We then careful the volume of the samples by using the formula V=?r^2 h. The density we calculated again with the same formula as above and we then moved on to purpose the percent misapprehension of both the aluminum and strap per samples densities. For calculated the p! ercent error of the densities we had to first find the actual densities of copper and aluminum. Then, we used this formula to find the percent error.If you want to hold up a full essay, order it on our website: OrderCustomPaper.com

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