You have an irregularly shaped piece of an unknown metal. To identify it, you determine its density and then compare this value with known values that you look up in the chemistry library. The mass of the metal is 74.122 g. Because of the irregular shape, you measure the volume by submerging the metal in water in a graduated cylinder. When you do this, the water level in the cylinder rises from 28.2 mL to 36.7 mL. (a) What is the density of the metal? (Use the correct number of significant figures in your answer.) (b) The unknown is one of the seven metals listed below. Isis possible to identify the metal based on the density you have calculated? Explain.
You have an irregularly shaped piece of an unknown metal. To identify it, you determine its density and then compare this value with known values that you look up in the chemistry library. The mass of the metal is 74.122 g. Because of the irregular shape, you measure the volume by submerging the metal in water in a graduated cylinder. When you do this, the water level in the cylinder rises from 28.2 mL to 36.7 mL. (a) What is the density of the metal? (Use the correct number of significant figures in your answer.) (b) The unknown is one of the seven metals listed below. Isis possible to identify the metal based on the density you have calculated? Explain.
You have an irregularly shaped piece of an unknown metal. To identify it, you determine its density and then compare this value with known values that you look up in the chemistry library. The mass of the metal is 74.122 g. Because of the irregular shape, you measure the volume by submerging the metal in water in a graduated cylinder. When you do this, the water level in the cylinder rises from 28.2 mL to 36.7 mL.
(a) What is the density of the metal? (Use the correct number of significant figures in your answer.)
(b) The unknown is one of the seven metals listed below. Isis possible to identify the metal based on the density you have calculated? Explain.
In the area of nano-chemistry, particles defined as nanoparticles range in size from 1-2500 nm. 1 nm is equivalent to 1 × 10–9 m. If the size of the particles that make up a particular material is 1.23 × 10–8 cm, what is this size in nanometers?
You are working in the laboratory and are testing the salinity of ocean water in various areas along the gulf coast. What is the mass % of sodium chloride in a 250.0 mL sample that contains 6.80 g sodium chloride? Assume the density of the ocean water is 1.03g/mL.
a thin sheet of nickel measured 5.00 cm by 7.00 cm was found to weigh .350 g. if the density of nickel is 8.90 g/cm3, what is the thickness of this sheet?
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Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell