Why might one loose product during a recrystalization experiment?? Do not include loss in trasfer
During recrystalization, why should a minimum amount of hot solvent be used for dissolving a crude acetanilide solid? Why must the recrystallized solid be washed with cold solvent?
In one experiment, you do not have the metal oxalate product as dry as possible. How might this affect the thermal decomposition procedure?
in a synthesis of acetanilide experiment, i performed recrystalization. i used my recovered product to test for impurities. My TLC and melting point analysis seems as if there are no impurities however my nmr shows an impurity maybe consistent with hydrolysis of acetanilide. (50mg was mixed with 400 microliters of deuterated chloroform for NMR) the impurity that im talking about can be seen below with label “figure this out” is the peak because hydrolysis? When could have hydrolysis happened and...
this is for dental hygiene • Discuss why a medical history is important. • What is a procedure you might do during an initial exam? . Describe the procedure and why it is done.
TPS: Why might loss of heterozygosity and/or allelic diversity to drift be a problem for a population?
Design a probability experiment to determine the empirical probability of tossing two heads with two coins. Why might results be different from theoretical probability and how can the experiment be altered so that the theoretical and empirical results become equal? Design a probability experiment to determine the empirical probability of rolling a 2 or a 5 with one die.Why might the results be different from theoretical probability and how can the experiment be altered so that the theoretical and empirical...
An IFRS statement might include all of the following except extraordinary gain or loss. net income or loss. unrealized gains or losses on the revaluation of long-term assets. cumulative effect of a change in accounting principle.
18. Describe one reason why the cell might want chromatin to be more tightly packaged during M phase compared to the other phases of the cell cycle?
These questions have to do with the One Belt Road Initiative. In general, how might this initiative affect sales of your product if you are located in the United States and want to export your product to one or more of the countries that are included in the Belt and Road Initiative? Next, using a specific product or product category, how might this initiative affect sales of your product?
DRESS Inc. is one of the newest clothing manufacturers located in Laguna. Their product lines include sandos, round neck shirts, fitted pants, v-neck shirts, wrap around skirt, and straight cur denims. Lately, the company has been experiencing a large number of rejects during the quality inspection at the finishing line. As the head of QC Department of the company, you were asked by the President to solve this alarming QC problem. The following are the data collected in the finishing...