# Do not forget to tare and dry the 100 ml beaker

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Pour the water into the 100 mL for each measuring devices and record the weight. Do not forget to tare and dry the 100 mL beaker. (Repeat 3x) 5. Pour 10.0 mL into the Graduated cylinder and record the mass. (Dry after measuring and repeat 3x) 6. Pour 10.0 mL into 50 mL buret and record the mass. (Dry and repeat 3x) Data Tables/Summary Table #1 Total mass of water after each measurement 50mL Beaker 10 mL Graduated Cylinder 50 mL Buret Temperature of water 22.7 7.49g 9.72g 9.96g

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3 7.20g 9.81g 10.05g 8.58g 9.74g 9.90g Table #2 Mass of each addition of water Mass of each portion 50 mL beaker Mass of each portion 10 mL grad cylinder Mass of each by buret 1. 7.49-0= 7.49g 9.72 - 0= 9.72g 9.96 - 0 = 9.96g 2. 7.20-7.49= 0.29g 9.81 - 9.72= 0.09g 10.05 - 9.96= 0.09g 3. 8.58 - 7.49 = 1.09g 9.74 - 9.72= 0.02g 9.90 - 9.96= 0.06g Table#3 Average Volume, Standard Deviation, absolute and relative error for each glassware H20 in 50 mL beaker H20 in G.C. H20 in Buret
4 Average Volume (mL) 7.756 9.756 9.97 Standard deviation 0.727 0.0472 0.0754 Absolute error for glassware 2.294 0.244 0.03 Relative standard deviation for glassware 0.0937 0.0048 0.0095

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9 Results and Discussion Based on the results, the students have concluded that there are limitations as to how accurate measurements can be. They have also assumed that the measurements that have been recorded can at times have miscalculation due to how accurate each of the glassware is. In each trial, the respective masses were calculated. From Table #1 the 50 mL masses during the three measurements have slightly changed, from the lowest measurement being 7.20g and the highest being 8.58g . From this the students observed that each measurement can vary from each other and not all of them can be quite similar. Moving on to Table #2 they initially recorded the mass of the liquid in each of the three different glasswares. From Table #2, The students have to determine each of the masses of the glassware by subtracting
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