Questions 1) We observed our copper sample sinking into the water. Copper has a

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Questions 1) We observed our copper sample sinking into the water. Copper has a density of 8.96 g/cm If we attempted to perform this experiment with a graduated cylinder filled with mercury (density = 13.56 g/cm), would the copper sample have sank into the mercury or floated on top the mercury? 2) We learned about a property called miscibility in the lecture. Miscibility is the ability o substances to mix and not separate into two separate states. Polar substances mix with polar substances while nonpolar substances mix with nonpolar substances. We've witnessed in nature that oil and water are immiscible. We've observed the different density values of water and canola oil. If you placed water and canola oil in a test tube, would you expect the canola oil to form a layer above the water or sink and form a layer below the water? Why? Thoughts for Conclusions It helps to mention the process and techniques you used in brief without going into too much detail. Your observations were in your data collection. You can discuss your percent error as well. This will not be an extensive conclusion, so use part of this section to discuss the types of error that could have contributed to the values you determined.

Explanation / Answer

1. The copper sample will float on top of the mercury because the density of copper (8.96 g/ cm3) is less than the density of Mercury( 13.56g/cm3). Less density means more bouyancy which facilitates copper to float on mercury.

5. The density of canola oil(0.92 g/ml) is less than water (1g/ml) hence it will always float on top of water. The difference in density is the reason why oil floats on water.

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