Investigating Properties Lab
Ishan Godra
SCH4U
Lab Partner(s): DeSean Lawrence
Ms. Boulougouris
10/31/14
Purpose
The purpose of this experiment is to analyze the properties of four different types of solids: ionic, polar covalent, non polar covalent, and metallic
Hypothesis
It is hypothesized the samples which are shown to be insoluble are likely non polar, while soluble samples are polar. Because of the molecular nature of each type of bond, it is hypothesized that polar covalent molecules
It is hypothesized that the samples which are insoluble in water are likely to be non-polar molecules or network covalent and the samples which dissolve are either ionic or polar molecules to have dissolved in the water. The polar covalent molecules should have the softest surfaces while the metallic and ionic would possess the hardest surfaces. Network bonds will vary in hardness as the arrangement and shape will affect the hardness as seen in the case with carbon where graphite is soft while diamonds are extremely …show more content…
Were there any results that were inconclusive or uncertain? If so, explain why.
Conclude and Communicate:
1. How did your results compare with your predictions? Explain.
2. Find out from your teacher the identity of the solid and its bonding. Assess and explain the accuracy of your prediction. The classification for sugar is polar covalent. Sucrose is a polar covalent solid. Sucrose had a relatively low melting point but was soluble in water. The low boiling point and the hydrocarbon structure meant that it was a covalent and the ability for it to have dissolved in water meant that the molecule must have been polar, making it polar covalent. In a sucrose molecule the two simple sugar molecules bond in such a way that allows freedom of movement and the resulting charges cannot be resolved into canceling components making sucrose a polar molecule.
3. What additional tests could be done to verify the type of bonding in your
Ishan Godra
SCH4U
Lab Partner(s): DeSean Lawrence
Ms. Boulougouris
10/31/14
Purpose
The purpose of this experiment is to analyze the properties of four different types of solids: ionic, polar covalent, non polar covalent, and metallic
Hypothesis
It is hypothesized the samples which are shown to be insoluble are likely non polar, while soluble samples are polar. Because of the molecular nature of each type of bond, it is hypothesized that polar covalent molecules
It is hypothesized that the samples which are insoluble in water are likely to be non-polar molecules or network covalent and the samples which dissolve are either ionic or polar molecules to have dissolved in the water. The polar covalent molecules should have the softest surfaces while the metallic and ionic would possess the hardest surfaces. Network bonds will vary in hardness as the arrangement and shape will affect the hardness as seen in the case with carbon where graphite is soft while diamonds are extremely …show more content…
Were there any results that were inconclusive or uncertain? If so, explain why.
Conclude and Communicate:
1. How did your results compare with your predictions? Explain.
2. Find out from your teacher the identity of the solid and its bonding. Assess and explain the accuracy of your prediction. The classification for sugar is polar covalent. Sucrose is a polar covalent solid. Sucrose had a relatively low melting point but was soluble in water. The low boiling point and the hydrocarbon structure meant that it was a covalent and the ability for it to have dissolved in water meant that the molecule must have been polar, making it polar covalent. In a sucrose molecule the two simple sugar molecules bond in such a way that allows freedom of movement and the resulting charges cannot be resolved into canceling components making sucrose a polar molecule.
3. What additional tests could be done to verify the type of bonding in your