Explain why a racemic mixture is formed when (r)-2-methylpentanal is dissolved in an acidic or basic solution. Why are acids sometimes referred to as proton donors? Explain why monoprotic acidic salts behave as strong enough acids to be titratable with NaOH using phenolphthalein as an indicator...
Explain why oxygen "likes" to form an O^2- ion. Why is it important to prevent having air bubbles in the column chromatography? How do hydrocarbons contribute to the formation of ozone in the atmosphere? Why does a racemic mixture not rotate the light?
Why does a racemic mixture not rotate the light? What is the disadvantage of crystallization over evaporation? Explain why alum crystals have to be washed with a 50:50 mixture of ethanol and water. Why does NH_3 have a lower boiling point than H_2O?
Why does a racemic mixture not rotate the light? Explain, with suitable resonating structures, why 4-nitrophenol is more acid than 4-aminophenol. Why does HF have a boiling point of 19 degrees C and H2O has a boiling point of 100 degrees C? Why is the molecule of Li2^2- a non-exist...
How do you determine if a reaction will yield racemic mixture or meso compound?Based upon the following energy profile diagram for the first step of an electrophilic aromatic substitution reaction, which of the following substituents is X mostly likely to be?
Explain why a racemic mixture is formed when (r)-2-methylpentanal is dissolved in an acidic or basic solution. Some lakes are more resistant to acid rain than others. What would not be a reason for this? a. The local soil is not sufficiently basic to neut...
The compound is the homogeneous mixture of one or more same or different substituents in a fixed ratio. For example, hydrochloric acid has the molecular formula of HCl which is obtained when hydrogen and chlorine combines in a ratio of 1:1....
Why does the formation of the diimide require temperatures in excess of 200 degrees Celsius? Why is it important to control the temperature of the reaction when adding the acids? Why does a racemic mixture not rotate the light? Why is it important to...
The nickel catalyzed hydrogenation of butanone produces racemic 2-butanol. Determine whether the following statement is true or false: A solution with a 50% percent optical activity contains a 50:50 mixture of enantiomers. ...
Organic synthesis may involve several organic reactions so that we can form the desired compound from the starting materials. It is possible that the starting material is as small as having only one carbon atom or maybe a compound that already contains several carbon...