LAB MEASUREMENT AND SIGNIFICANT FIGURE REPORT FORM (Continued-Page 2) Part 2: De
ID: 997785 • Letter: L
Question
LAB MEASUREMENT AND SIGNIFICANT FIGURE REPORT FORM (Continued-Page 2) Part 2: Determination of Density. Concentration of NaCl solution o Mass of empty vial plus stopper Record temperature of the water in vial: Mass of stoppered vial plus water etols 37.92 Mass of stoppered vial plus salt solution oC 20-89 Se Volume of vialass 49732Mass of salt solution Density= me. Density ofsalt solution Vol 1-17 To how many significant figures can the density of the salt solution be properly reported? Part 3: Determination of Accuracy and Precision. 1. How accurate is the density you calculated for your salt solution? Explain and show work -mass 24.S 20.92 Vo l 17
Explanation / Answer
% error = [(1.171-0.986) / 0.986)]*100 = 18.76 %
Therefore , % accuracy = 100 - 18.76 = 81.24 %
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