Answer:
Explanation:
The equation is given as:
CH3CHOHC2H4CHO + CH3OH --> CYCLIC ACETAL + H2O
This above equation is carried out in the presence of a strong acid. There are five mechanisms employed and they are:
Step 1:
Initial formation of the hemiacetal which takes several steps
Step 2:
Addition of a proton. The hemicetal is protonated on the hydroxyl group (-OH group)
Step 3:
As seen a bond is broken to give the H2O molecule and a resonance stabilized cation.
The carbonyl group on the cation is enriched with the oxygen-18 got from the H2O molecule as seen in the mechanism.
Step 4:
An attraction occurs between electrophile and nucleophile i.e the stabilised cation and the lone paids of the methanol.
Step 5:
Finally, a proton (+) is removed from the molecule by a lone pair of electron on the methanol.
Attached are the Steps 1 - 5 mechanism below
Answer:
58.8C of heat
Explanation:
76.9C is the current heat temperature, to decrease it to 18.1C we have to subtract the both and later find our answer
Answer:
The fraction of the available octahedral positions are filled with
ions is 
Explanation:
If there are n numbers of spheres in HCP in packing:
Number of octahedral void = n
Number of tetrahedral void = 2n
Total number of voids = n + 2n = 3n
The
crystal structure consists of an HCP arrangement of
ions.
Number of spheres in HCP = 6
Number of
= 6
Number of octahedral voids = 6
Number of tetrahedral void = 12
Number of aluminum ions when there are 6
ion =
Number of voids in which
ions are present = 4
The fraction of the available octahedral positions are filled with
ions = 
24= y2k* - 2x H202 grams in mass
I believe that it's C: Easily compressible