The literature value for the melting point of your product was 108-109 oC. Below is the data for 4 students, which student had the purest crystals AND the correct product. Student A: melting point range of 100-107 oC Student B: melting point range of 111-112 oC Student C: melting point range of 105-107 oC Student D: melting point range of 98-109 oC

B

Explanation:

The melting point of a compound is helpful in two ways:

Impurities affect a compound's melting point, resulting in melting point levels that are both larger and lower. Impurities are found in the sample if the melting point is significantly smaller and has a broader spectrum than the literature value.

This is usually, as a result, of laboratory failures that happened during the study.

Thus, the melting point range for the purest crystal should be greater than the literature value which is between 111-112 oC

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