Compound X is phenyl succinate.
Because melting point of compound decreases as impurities (or another compound) was added in it. When Compound X is mixed with Benzoic acid then mixture melt at 89°C which is lower than 121 °C (original melting point) hence X is not Benzoic acid. When X is mixed with phenyl succinate then melting point of mixture is 120°C which is almost similar to 121°C hence Compound X is phenyl succinate.
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why isnt the benzoic acid answer?꙼̈ melting points of Benzoic acid and Phenyl succinate are both...
please answer them 7 and 8
7. A student was given an unknown compound X, which is one of the four compounds listed below. Substance Literature Melting Point (°C) o-toluic acid 102 122 m-aminophenol benzoic acid Phenyl succinate 122 121 . A mixture of X with benzoic acid melts at 92°C, a mixture of X with phenyl succinate melts at 120°C and a mixture of X with m-amino phenol melts at 102°C. The student wrote that the unknown compound is...
In the Unknown/Urea and Unknown/Cinnamic Acid mixtures only a
LITTLE BIT of the Unknown was put in. Please identify the unknown
based off this data and tell how you came to the conclusion.
8. Study the experimental melting point data in Table 2 for this experiment, with the goal of making a determination of the identity of the unknown (either cinnamic acid or urea) based on this data. Table 2. Melting Point Data # Compound/Mixture Observations/Comments Melting Point/C (mp) or...
I was conducting an acid-base extraction experiment with the objective of identifying an unknown benzoic acid from a mixture. My group recrystallized the aqueous layer and obtained its melting point to compare with standard compounds. In the end, our melting range for the recrystallized product was 136.0ºC - 142.2ºC which was only similar to the range of the standard 2-chloromethyl benzoic acid (139.4ºC - 143.6ºC) out of all the provided standards. However, when testing the mixed melting point of the...
Powder (shor sten FUNNELS Fitering (long stem 63 Chapter 4 Melting Points, Boiling Points, and Refractive Indices Questions 1. What effect would poor circulation of the melting point bath liquid have on the observed melting point? 2. What is the effect of an insoluble impurity, such as sodium sulfate, on the observed melting point of a compound? 3. Three test tubes, labeled A, B, and C, contain substances with approxi- mately the same melting points. How could you prove the...
Question 14 The melting point of a pure compound is known to be 110-111º. Describe the melting behavior expected if this compound is contaminated with 5% of an impurity. 90-96 111-113 90-91 110-111 5 pts Question 15 You and your lab partner take melting points of the same sample. You observe a melting point of 101-107°C, while your partner observes a value of 110-112°C. Explain how you can get two different values with exactly the same sample. One of the...
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An unknown compound X is one of the three compounds listed in the table below. A mixture of X with trans-cinnamic acid melts from 126-130°C, a mixture of X with decanedioic acid melts from 131-132°C, and a mixture of X with 2-furancarboxylic acid melts from 121-133°C. Give the identity of X and explain your reasoning. Type your answer in the box given below. Compound m.p... °C decanedioic acid 131-133 trans-cinnamic acid 132-135 2-furancarboxylic acid 132-134 You are fractionally...
4. An unknown compound X is one of the five compounds listed in the table below. A mixture of X with 2-methyl-3-pentanol melts at 118-125 °C, a mixture of X with 2-nitro-4- methoxyaniline melts at l 10-120°C, a mixture of X with 2-chloroethanol melts at 127-120°C, a mixture of X with 4-methyl-2-pentanol melts at 115-122 °C, and a mixture of X with 1- naphtylacetic acid melts at 108-121 °C. Give the identity of X and explain your reasoning. Compound 2-methyl-3-pentanol...
- A student is trying to identify an unknown solid based on its melting point. She noted that the compound began to melt at 182°C and finished melting at 187°C. Knowing it is possible for there to be impurities in the sample, is this compound more likely to be camphor or hydroquinone. Explain your reasoning. A young chemist has synthesized what he believed to be acetaminophen. He measured the melting point of this newly formed compound to be 163-178°C. If...
Provide a brief rationale for why
( Please help me answer all questions please this is SO
important)
When benzoic acid is mixed with inorganic sand, what happens to the melting point of the sample? 6. a. It increases b. It decreases c. It stays the same. d. It increases above the actual melting point then decreases. e. It goes below the eutectic point 7. In thin-layer chromatography, the observed Rr will change upon changing any of the following parameters...
5. The equilibrium constant (K) for the formation of methyl benzoate from methanol and benzoic acid at 25°C is 3.77. Use the equation for the equilibrium constant to calculate the theoretical yield of methyl benzoate for the following conditions. (6 marks) a) With equal initial amounts of the reactants (1 mole of each reactant) b) With a threefold (x 3) excess of methanol (1 mole of benzoic acid and 3 moles of methanol) 6. Suggest a chemical reaction (include structures...