c) In Part A of this lab, you will perform a similar analysis of density data ob

Question

c) In Part A of this lab, you will perform a similar analysis of density data obtained for distiled water. What three types of volumetric glassware will you be using? A student decides to use the technique employed in Part B of this lab to determine the density of vodka. He first fills a buret with vodka to an initial volume of 1.52 mL. He then drains out some of the vodka into an empty beaker with a mass of 13.687 g. The final buret volume is 9.62 mL. If the combined mass of the beaker and vodka is 21.123 g, what is the the density of the vodka? Give your answer to the correct number of significant figures. 2. Page 1 of 2 The Densities of Solutions and Solids Page 2 of 2

Explanation / Answer

Initial level = 1.52 mL

Final level = 9.62 mL

Change in volume= Volume of Vodka added to beaker= 9.62-1.52= 8.10 mL

Weight of vodka= final weight - Initial weight of beaker = 21.123 - 13.687 = 7.436 g

Density = mass/ volume = 7.436/8.10= 0.918 g/mL = 0.918 g/cc

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