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chemistry question 20marks
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A student decides to use the identical technique in Part B to determine the density of an unknown metal. She obtains the following data:Mass of Empty Beaker unknown_prefix13.316g unknown_prefixMass of Beaker + metal pellets unknown_prefix61.631g unknown_prefixInitial volume of water in cylinder... 顯示更多 A student decides to use the identical technique in Part B to determine the density of an unknown metal. She obtains the following data: Mass of Empty Beaker unknown_prefix 13.316g unknown_prefix Mass of Beaker + metal pellets unknown_prefix 61.631g unknown_prefix Initial volume of water in cylinder unknown_prefix 30.1 mL unknown_prefix Final volume of water + metal pellets in cylinder unknown_prefix 59.1 mL unknown_prefix Use this data to determine the density of the metal in g/cm3 to the correct number of significant figures:
最佳解答:
Mass of the metal = 61.631 - 13.316 = 48.315 g Volume of the metal = Increase in volume reading of the cylinder = 59.1 - 30.1 = 29.0 mL = 29.0 cm3 Density of the metal = 48.315/29.0 = 1.67 g/cm3 (3 sig. figs.) =
其他解答:A215E4A27F624C16
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