![]() Densities of Common Substances 20☌ SubstanceĠ.00133 Oxygen Hydroge 0.000084 nEthanol 0.785 0.880 Benzene 1.000 Water 1.74 Magnesiu m 2.16 Sodium chlorid eĪluminum Iro n Copp er Silve rLea d Mercury Gol dĬalculate the volume of 60.0 g of each of the following substances: 16.Ĭalculate the mass of 40.0 cm3 of each of the following substances: 21. D = M/V = 1450 g / 542 cm3 = 2.68 g/cm3įor numbers 16 – 25 use the chart to answer the questions. A cube of metal weighs 1450 g and displaces 542 mL of water when immersed. If 89.2 mL of a liquid has a mass of 75.2 g, calculate the liquid’s density.ĭ = M/V = 75.2 g / 89.2 mL = 0.84 g/mL 15. What is the volume of a 155-gram sample of mercury? V = M/D = 155 g /13.6 g/mL = 11.4 mL 14. The density of mercury (a liquid metal) is 13.6 g/mL. What is the volume of a 575-gram bar of pure gold? V = M/D = 575 g / 19.3 g/cm3 = 29.79 cm3 13. What is the volume of a 240-gram piece of cork? V = M/D = 240 g /0.24 g/cm3 = 1,000 cm3 12. What is the mass of a pure platinum disk with a volume of 113 cm3? The density of platinum is 21.4 g/cm3. What is the density of marble? D = M/V = 6200 g / 2296 cm3 = 2.7 g/cm3 10. A marble statue has a mass of 6,200 grams and a volume of 2,296 cm3. What is the density of rubber? D = M/V = 33.0g /30.0 cm3 = 1.1 g/cm3 9. A solid rubber stopper has a mass of 33.0 grams and a volume of 30.0 cm3. Will an object with a density of 0.86 g/cm3 sink or float in water? How do you know? It will float because its density is less than the density of water, which is 1 g/cm 3.Ĩ. The volume of the object would be 9 cm3.ħ. What is the volume of an object that made the water level rise in a graduated cylinder from 50 mL to 59 mL? Remember that volume is measured in cm3 and not mL when giving your answer. This will give you the volume of the sample.ĥ. Then you subtract the initial volume from the final volume. ![]() Then you place the sample all the way into the water and see the final level where the water is. ![]() How can you use the displacement method to find the volume of an irregular solid? First you put water in a graduated cylinder and check the initial volume. or Copper atoms are arranged closer together so that there are more atoms in the cube.Ĥ. or Copper atoms are smaller so that more of them can fit in a cube. Copper atoms each have a greater atomic mass than aluminum atoms. Give one possible reason why the copper cube has more mass. ![]() When you place them each on an electronic balance, you find that the copper cube has more mass than the aluminum cube. Imagine that you have a cube of copper and a cube of aluminum, which are exactly the same size and shape. If two objects have the same volume, but object A has greater mass than object B, which one will have the greater density? Object A because if density = m/v, and the first one has more mass, this would make the density greater. What is the mathematical equation for density? Density = mass/volume or D=m/v 2. SHOW ALL MATH WORK and DON’T forget to include the units!ġ. Unit 2(adv) – Properties of Matter/Density TestĪnswer the questions completely.
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