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If 1.5g of salicylic acid is heated with an excess of acetic anhydride, what is the theoretical yield of acetylsalicyclic acid?
With 1,5 g of salicylic acid you can obtain theoretically 1,96 g aspirin (acetylsalicylic acid); but in the laboratory (or industry) I remember that the true yield of reaction is a little more than 90 %.
What is the dissociation constant or Ka for salicylic acid?
3.9 x 10^-6 The above value could be true. However, it also depends on the concentration of the acid and base at that given experiment. In a general sense, it would have a Ka value of somewhere in the 10^-6 range. P.S. Correct me if I am wrong by any given chance
What is the reaction CuSO4 5H2o plus heat?
CuSO4 * 5H2O ----> CuSO4 + 5H2O. This is true because CuSO4 * 5 H2O is a salt weakly bounded to water, that is why it is hydrous. When it decomposes, the weak bonds are broken making the products above. CuSO4*5H2O formula is [Cu(OH2)4]SO4*H2O CuSO4 + 5H2O --> [Cu(OH2)4]SO4*H2O
Every Brønsted Lowry acid is also a lewis acid.?
True. Every Brønsted-Lowry acid can also act as a Lewis acid because both definitions involve the donation of a proton or an electron pair, respectively. A Brønsted-Lowry acid donates a proton, while a Lewis acid accepts an electron pair.
Is it possible to have a concentrated solution of a weak acid or base True or False?
True. It is possible to have a concentrated solution of a weak acid or base, as the concentration of a solution refers to the amount of solute dissolved in a solvent, regardless of the strength of the acid or base. The degree of dissociation may be low, but the concentration can still be high.
If 1.5g of salicylic acid is heated with an excess of acetic anhydride, what is the theoretical yield of acetylsalicyclic acid?
With 1,5 g of salicylic acid you can obtain theoretically 1,96 g aspirin (acetylsalicylic acid); but in the laboratory (or industry) I remember that the true yield of reaction is a little more than 90 %.
What is the dissociation constant or Ka for salicylic acid?
3.9 x 10^-6 The above value could be true. However, it also depends on the concentration of the acid and base at that given experiment. In a general sense, it would have a Ka value of somewhere in the 10^-6 range. P.S. Correct me if I am wrong by any given chance
Is echo a reverse sound true or false?
true
What is the reaction CuSO4 5H2o plus heat?
CuSO4 * 5H2O ----> CuSO4 + 5H2O. This is true because CuSO4 * 5 H2O is a salt weakly bounded to water, that is why it is hydrous. When it decomposes, the weak bonds are broken making the products above. CuSO4*5H2O formula is [Cu(OH2)4]SO4*H2O CuSO4 + 5H2O --> [Cu(OH2)4]SO4*H2O
Aspirin a prodrug?
No it's not a prodrug it works by acetylating the serine in the 530 position of COX and is then converted to salicylic acid which is inactive. It acts by preventing Arachadonic acid (AA) from entering the active site and forming PGG2, This is also true for COX2 even though it does allow AA to pass it doesn't form PGG2 instead forming 15-R-HETE.
Is it true that bottom brackets are reverse threaded?
Yes, it is true that some bottom brackets are reverse threaded, meaning they are tightened by turning them counterclockwise.
The letters of the word sponged appear in reverse alphabetical order?
True. True.
True or false An amino acid contains either an amino group or a carboxylic acid group?
the answer is true
Who is the reverse flash?
Wallace zengeni is the True reverse flash...and he's also Al-Sahim
Does ozone destroy chlorofluorocarbons?
No it doesn't. The reverse is true.
What is a true Lewis acid?
A Lewis acid accepts electron pairs.
Is it true or false that vaporization is the reverse of condensation?
Yes, the statement "vaporization is the reverse of condensation" is either true or false because there are no other possibilities. It has to be one or the other.But seriously.... the statement "vaporization is the reverse of condensation" is a true statement.
