Explain how you would use melting point to determine the purity of a solid sample and...

Explain how you would use melting point to determine the purity of a solid sample and how impurities influence melting point.

What is the ideal solvent for re-crystallizing a compound: (i) one that dissolves the compound at low temperatures, (ii) one that dissolves the compound at elevated temperatures, or (iii) one that only slightly dissolves the compound, (b) and how would you then promote crystallization?

What are the boiling points of heptane, 1-hexanol, and 2,2,3-trimethylbutane? Account for the difference in boiling points.

Expert Solution

queen_honey_blossom answered 2 years ago

Determine the purity of an Aluminum can. In words how would you determine the purity? Also,...

Determine the purity of an Aluminum can. In words how would you determine the purity? Also, make up random numbers to calculate how to find the purity of an Aluminum can.

How could you use HPLC to determine the purity of your acetaminophen sample?

The melting point of a solid compound is reported as a range of two temperatures. For...

The melting point of a solid compound is reported as a range of two temperatures. For example, the literature (known) melting point of benzamide is 125-128 °C. a.What does the first temperature in this range indicate? b.What does the last temperature in this range indicate?

You have completed a reaction and take the melting point of your resulting solid product and...

You have completed a reaction and take the melting point of your resulting solid product and the melting point you measured on the melt-temp is 130 – 142°C. The product you were trying to make was chloramphenicol which has a literature melting point of 150 - 151.5°C. (A) What are two possibilities for why your melting point is different from the literature melting point? (B) How would you figure out which of your two possibilities actually happened?

How do you use TLC to determine the identity and purity of E-stilbene and stilbne dibromide....

How do you use TLC to determine the identity and purity of E-stilbene and stilbne dibromide. Also, refrecing intermolecular forces predict how stilbene dibromide would move on a TLC plate relative to E-stilbene

Assuming the solvent selected has a boiling point below the melting point of the solid, which...

Assuming the solvent selected has a boiling point below the melting point of the solid, which factor is important for successful recrystallization? A. specific heat B. boiling point C. Melting point D. Solubility

1) Which of the following is a solid at room temperature with the lowest melting point?...

1) Which of the following is a solid at room temperature with the lowest melting point? a. caffine b. sodium carbonate c. water d. dichloromethane e. sodium sulfate 2) Which has the highest density and is solid at room temperature? a. caffine b. sodium carbonate c. water d. dichloromethane e. sodium sulfate

(1 point) Explain what melting point depression is and how this supposes to affect the physical...

(1 point) Explain what melting point depression is and how this supposes to affect the physical state of your reaction (both reactants are solids before mixing and, upon mixing, what you expect to happen? Keep this answer in mind during your reaction and observe to see if your prediction came true) (1.5 point) what is the structure of your expected product for all 6 possible reactions? USE CHEMDRAW Vanillin + o-toluidine Vanillin + m-toluidine Vanillin + p-toluidine o-Vanillin + o-toluidine...

When 27.2 g of solid A, at its melting point of 34.0 °C, was added to...

When 27.2 g of solid A, at its melting point of 34.0 °C, was added to 62.7 g of liquid A at 51.2 °C, the mixture cooled to 35.0 °C, with no solid remaining. Given the specific heat of liquid A (s = 0.798 J/g·°C), find the heat of fusion per gram of solid A. Assume that no heat enters or leaves the mixture. That is, assume that the mixture is an isolated system and therefore that q1 + q2...

3) What 2 effects does an impurity have on the melting point of a solid?

Question