5. How would the melting point range of your acid unknown be affected if you do...

Question

Question

5. How would the melting point range of your acid unknown be affected if you do not dry the crystals completely? Explain.

science chemistry

Answer 1

Answer #1

Answer 2

Similar Homework Help Questions

Cinnamic acid and urea melt at 133°C. The melting point of an unknown is found to...

Cinnamic acid and urea melt at 133°C. The melting point of an unknown is found to be 133°C. What experiments using melting range determinations could be done to determine if the unknown is cinnamic acid or urea?
3. The melting point of unknown A was measured to be 110-120°C and unknown B was...

3. The melting point of unknown A was measured to be 110-120°C and unknown B was measured to be 105-109°C. What statement would make the best conclusion about the identity and purity of the product? (4 pts) A. Unknown A range of 110-120°C is the pure substance. Unknown B range of 105-109°C contains impurities. B. Unknown B range of 105-109°C is the pure substance. Unknown A range of 110-120°C contains impurities. C. Both Unknown A and B are pure substances....
If your sample has impurities, would the melting point range be large or small. Explain why.

If your sample has impurities, would the melting point range be large or small. Explain why.

How to determine melting point depression (when measuring from the midpoint of melting point ranges). For...

How to determine melting point depression (when measuring from the midpoint of melting point ranges). For example what would be the melting point depression of a component such as benzoic acid with a crude melting point range of (108-124) and a final melting point range of (96-108).
1. You are conducting a melting-point determination to identify a compound whose handbook melting-point range is...

1. You are conducting a melting-point determination to identify a compound whose handbook melting-point range is 112 - 114 °C. Comment on the purity of the sample, and the possible identity of the substance, when your experimental melting-point range is : A. 114 -116 °C B. 94 - 102 °C I would C. 102 - 103 °C
I was conducting an acid-base extraction experiment with the objective of identifying an unknown benzoic acid...

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...

Hexachlorobenzene has a literature melting point of 231 ºC. What would be a reasonable result when...

Hexachlorobenzene has a literature melting point of 231 ºC. What would be a reasonable result when melting an impure sample of hexachlorobenzene? It would start melting around 229 ºC and finish melting around 233 ºC. It would start melting around 225 ºC, and finish melting around 230º C. The impurity would melt at whatever temperature is normal for that impurity, but the hexachlorobenzene would melt right at 231 ºC . It would melt right at a temperature lower than the...
Why will your melting range be too broad on the high end of the melting point...

Why will your melting range be too broad on the high end of the melting point range if you heat the sample too quickly?
In the Unknown/Urea and Unknown/Cinnamic Acid mixtures only a LITTLE BIT of the Unknown was put...

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...

Question 1 5 pts - What is the purpose of melting point? All the answers To...

Question 1 5 pts - What is the purpose of melting point? All the answers To check the purity of solids To check identity of unkown solids To publish for new solids for future characterization Question 2 5 pts How does impurity change melting point value and range? increase-narrowing decrease-narrowing decrease-broadening O increase-broadening Question 3 5 pts What is the reason of an impurity affecting melting point of a solid? Watch Mel. Point Theory video. Not known Obc it weakens...