Hi, I need help graphing this data especially on how to connect the lines at the eutectic composition. What is the melti
Posted: Tue May 17, 2022 12:55 pm
Hi, I need help graphing this data especially on how to connect
the lines at the eutectic composition.
What is the melting point of benzoic acid that you determined?
How does this compare to the literature value?
What does this tell you about the purity of the compound?
Based on the intersection of the lines from your graph, what was
the eutectic temperature for the mixture?
Based on the intersection of the lines from your graph, what was
the composition of the eutectic mixture?
(10pts) Calculations and Analysis For each melting point range, calculate the midpoint of the melting temperature range. Report Table MP.3: Melting pont analysis Table view List view Midpoint of melting temperature (MP) range for pure compounds and mixtures Start of MP temp range ("C) End of MP temp range (°C) Midpoint of MP temp range (°C) 122 Pure benzoic acid 121 123 80:20 mixture (benzoic acid:mandelic acid) 93 109 101 60:40 mixture (benzoic acid:mandelic acid) 91 99 95 40:60 mixture (benzoic acid:mandelic acid) 89 93 91 20:80 mixture (benzoic acid:mandelic acid) 88.5 87 90 119 Pure mandelic acid 118 120 (4pts) Graph your results of the pure compound and mixture melting points. For each point, use the temperature in the middle of your melting point range. After plotting all the points, draw two best fit straight lines to connect at the eutectic composition.
the lines at the eutectic composition.
What is the melting point of benzoic acid that you determined?
How does this compare to the literature value?
What does this tell you about the purity of the compound?
Based on the intersection of the lines from your graph, what was
the eutectic temperature for the mixture?
Based on the intersection of the lines from your graph, what was
the composition of the eutectic mixture?
(10pts) Calculations and Analysis For each melting point range, calculate the midpoint of the melting temperature range. Report Table MP.3: Melting pont analysis Table view List view Midpoint of melting temperature (MP) range for pure compounds and mixtures Start of MP temp range ("C) End of MP temp range (°C) Midpoint of MP temp range (°C) 122 Pure benzoic acid 121 123 80:20 mixture (benzoic acid:mandelic acid) 93 109 101 60:40 mixture (benzoic acid:mandelic acid) 91 99 95 40:60 mixture (benzoic acid:mandelic acid) 89 93 91 20:80 mixture (benzoic acid:mandelic acid) 88.5 87 90 119 Pure mandelic acid 118 120 (4pts) Graph your results of the pure compound and mixture melting points. For each point, use the temperature in the middle of your melting point range. After plotting all the points, draw two best fit straight lines to connect at the eutectic composition.