Measurement of Mass (Weighing by Difference) 2. Weighing by Difference Details Trial 1 Details Trial 2 Details Trial 3 Mass (g) of Watch Glass Mass (g) of Watch Glass Mass (g) of Watch Glass 45.5567 37.7254 29.9695 plus 3 Coins with 2 Coins with 1 Coin Mass (g) of Watch Glass 37.7254 Mass (g) of Watch Glass 29.9695 Mass (g) of Watch Glass 22.2340 plus 2 Coins plus 1 Coin Mass (g) of Coin Removed Mass (g) of Coin Removed Mass (g) of Coin Removed Average Mass of Coin Deviation Deviation Deviation Standard Deviation Coefficient of Variation (%RSD) Measurement of Volume Capacity of Volumetric Flask Details Temperature of the Distilled H20 (c) 23.0 Theoretical Value of the Density of 0.997542 distilled H20 Trial 1 Trial 2 Trial 3 Mass (g) of Volumetric Flask + Distilled 43.8833 43.8836 43.8831 H2O Mass (g) of dry Volumetric Flask 19.21670 19.2670 19.2666 Mass (g) of Distilled H20 of Distilled H20 in Volumetric Flask Average Volume (mL) of Distilled H20 Deviation Standard Deviation Coefficient of Variation (%RSD)