Answer :
Final answer:
The melting point of an impure sample of aspirin contaminated with salicylic acid will likely be within the range of 135 degrees Celsius to 159 degrees Celsius as this encompasses the melting points of the two pure substances.
Explanation:
The appropriate melting point for an impure sample of aspirin that is contaminated with salicylic acid would be range b) 135 degrees Celsius to 159 degrees Celsius. The reason is that when two substances, in this case, aspirin and salicylic acid, are mixed, the melting point of the mixture tends to be within the range of the melting points of the two pure substances. Therefore, because the melting points are 134 degrees Celsius for acetylsalicylic acid (aspirin) and 159 degrees Celsius for salicylic acid, an impure sample's melting point would fall between these two temperatures.
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