Sucrose Melting Point

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The melting point of sodium chloride is 801 C. The result achieved got in the investigation was that sodium chloride did not melt within the time the substances were placed on the hot plate. The lab result was similar to the actual melting point, because 801 C is a pretty high melting point and hence the sodium chloride did not start melting, but it would have if it remained on the hot plate for a longer amount of time. The melting point of sucrose is 186 C. The result during the investigation was that the sucrose was the second substance to start melting after substance "unknown C". The real melting point of sucrose corresponds to the results that were observed. This is because compared to the melting point of sodium chloride, the melting point of sucrose is pretty low, and hence it started melting within minutes of it being kept on the hot plate. In a …show more content…

This can be determined because ionic bonds are able to conduct electricity if dissolved in water or if they are molten. This is because the ions in the water are able to carry electrical charges and this allows for electricity to pass through. On the other hand covalent bonds do not conduct electricity. When sodium chloride was tested with the ammeter, it showed a reading of 130 mA, which is pretty high compared to the other substances, and hence this shows that sodium chloride is probably an ionic bond. Sucrose achieved a reading of 0, which concludes that this most probably is a covalent bond, and further tests would confirm this conclusion. Sodium hydrogen carbonate was only able to conduct 20mA of electricity, but it is still a ionic bond, this is because covalent bonds are not able to conduct electricity at all. In a similar way to sucrose, glycerin also had a ammeter reading of 0 mA, and hence telling us that glycerin is a covalent

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