Answer:
See explanation below
Explanation:
This reaction is known as Ketone hydrolisis in acid medium. This involves the formation of an hemi cetal, and then, the acetal. This is often used to convert ketones or aldehydes in ethers.
The first step involves the reaction with the acid. The carbonile reacts with the acid and forms an alcohol there. The next step is the reaction of the alcohol, in this case, the methanol to form the hemi cetal. Then in the third step, we repeat the first step, using acid to turn the OH group into a great leaving group such water. Then the water leaves the molecule, leaving the space wide open in the next step for methanol, and the acetal is formed.
See picture for the curved arrow mechanism
Answer:
Explanation:
121) The sugar sucrose has 12 carbon atoms, 22 hydrogen atoms and 11 oxygen
atoms. How would this be written?
A) Co12H22O1 [Co is cobalt]
<u><em>B) CI2H22011</em></u> [Yes]
C) C6H1206 [6 C atoms]
D) CacH1206 [Ca is calcium]
122) How are the elements organized on the periodic table?
A) Atomic Mass [Yes, from lightest to heaviest]
B) Element Name
C) Symbol
D) No Set Organization
123) Which of the following elements would be considered a compound?
A) CH [Yes, two or more elements combined]
B) Si [No]
C)F [No]
D) O6 [No, multiple atoms, but same element]
124) The formula for water is H2O meaning there are 2 Hydrogen atoms and 1
Oxygen. What is the atomic mass of one molecule to the nearest hundredth?
A) 15.99
B) 16.99
C) 17.99 [Yes, 16 + 2*1 = 18]
D) 18.99
First convert volume to mass:
mass = 0.789 g/mL * 155 mL = 122.295 g
Then convert mass to number of moles:
number of moles = 122.295 g * (1 mole / 46 g) = 2.66 moles
Using avogadros number, we get the molecules:
<span>number of molecules = 2.66 moles * 6.022 x 10^23 molecules
/ mole = 1.6 x 10^24 molecules</span>
Answer:
Medicinal chemistry involves the creation and refinement of molecules for the purpose of creating or improving drugs.
