객관식A sample of gas has a density of 1.0 g/L. What is the density of the gas in units of mg/mL?144views
객관식If an object has a density of 8.65 g/cm^3 and a mass of 346 g, what is its volume in cm^3?102views
객관식The density of solid nickel (Ni) is 8.90 g/cm^3. How many atoms are present per cubic centimeter (cm^3) of Ni? (Atomic mass of Ni = 58.69 g/mol; Avogadro's number = 6.022 × 10^{23} atoms/mol)184views
객관식A sample in your lab has a mass of 2.7 kg and occupies a volume of 0.001 m^3. Based on its density, which substance is it most likely to be?112views
객관식The density of solid chromium (Cr) is 7.15 g/cm^3. How many atoms are present per cubic centimeter (cm^3) of Cr? (Atomic mass of Cr = 52.00 g/mol; Avogadro's number = 6.022 × 10^{23} atoms/mol)170views
객관식Which of the following best describes the relationship between specific gravity and refractive index for a series of liquids?112views