Multiple ChoiceWhich of the following best describes specific gravity and its relationship to density?25views
Multiple ChoiceA sample of water has a volume of 10.0 cm^3. Given that the density of water is 1.0 g/cm^3, how many water molecules are present in the sample? (Molar mass of H_2O = 18.0 g/mol; Avogadro's number = 6.02 × 10^{23} molecules/mol)17views
Multiple ChoiceA sample of brass weighing 1.203 grams occupies a volume of 0.150 cm^3. What is the density of the brass sample?36views
Multiple ChoiceWhich of the following demonstrations best shows that solid water (ice) is less dense than liquid water?22views
Multiple ChoiceWhich statement is true about the mass and volume of all objects that sink in water?20views
Multiple ChoiceWhich of the following correctly describes how to calculate the density of a substance?28views