We would therefore still need to report the answer to three significant figures, 0.0551 mL. Density in kg/m 3: Earths atmosphere at sea level: 1.2: Water at standard temperature and pressure: 1,000: The Earth: 5,515. Although the mass we are starting with now has four significant figures, the density we are using as a conversion factor still only has three significant figures. The volume of a 500 g sealed packet is 350 cm 3. Rocks often have a density around 3 g/cm 3, and metals often have densities above 6 or 7 g/cm 3. ![]() ![]() Consider, for example, if we had tried calculating the volume of 0.7500 g of mercury in the previous example. The volume of a 500 g sealed packet is 350 c m 3 what will be relative density of the packed packet if density of water is 1 g / c m 3. Liquids often have densities of about 1.0 g/cm 3, and indeed, fresh water has a density of 1.0 g/cm 3. The density of oil is 0.6 g c m 3 and the lower face of ice cube is 2 c m below the interface. State whether each of the following will sink or float when placed in water. If the density of a body is lower than the density of water, it floats on water. Density of Water (g/cm3) at Temperatures from 0☌ (liquid state) to 30.9☌ by 0.1☌ increments. A cubical block of side 10 c m floats at the interface of an oil and water as shown in the figure. Water has a density of 1.0 g/cm3 at room temperature. The significant figures in the density must therefore be considered when determining the significant figures in any answer calculated using it. If the density of a body is higher than the density of water, it sinks in water. \]ĭensity is a measurement, and like any measurement it contains some error.
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