you are presented with four vials each containing A white solid. Two are unlabel
ID: 886490 • Letter: Y
Question
you are presented with four vials each containing A white solid. Two are unlabeled vials containing pure samples of trans-cinnamic acid and urea, retrospectively. The other two are labeled reference standards for each sample. What's a method for the proper identification of the unlabeled via knowing that the literature melting point for the both cinnamic acid and urea is 132.5-133. you are presented with four vials each containing A white solid. Two are unlabeled vials containing pure samples of trans-cinnamic acid and urea, retrospectively. The other two are labeled reference standards for each sample. What's a method for the proper identification of the unlabeled via knowing that the literature melting point for the both cinnamic acid and urea is 132.5-133. you are presented with four vials each containing A white solid. Two are unlabeled vials containing pure samples of trans-cinnamic acid and urea, retrospectively. The other two are labeled reference standards for each sample. What's a method for the proper identification of the unlabeled via knowing that the literature melting point for the both cinnamic acid and urea is 132.5-133.Explanation / Answer
add water to two vials. urea soluble in water and forms clear solution. cinnamic acid will not be soluble in water and forms separate layers. this is one of the method to find out which is urea and which is cinnamic acid.
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