To connect the parts of a circuit and transport electricity in it from one place to nother
Answer:
The pKa of ethanol is higher than the pKa of water.
Explanation:
The Question above asked us to determine or Predict the relative pKa values of benzoic acid in water and in 95% ethanol.
So, there is going to be a higher pKa recorded for the ethanol than the pKa of water.
The reason is because the ka value will be larger for benzoic acid in water(that is the benzoic acid will act more as an acid here) and there will be less value for ka in 95% ethanol( that is the benzoic acid will act as less acid here than in water).
Mass = ?
Density = 2.70 g/mL
Volume = 276 mL
Therefore:
D = m / V
2.70 = m / 276
m = 2.70 x 276
m = 745.2 g
Answer: Mass of diborane that would react with 7.5 mole of O2 is 70g
Explanation: The explanation is contained in the picture attached.
Answer:
propanoic acid forms hydrogen bonded dimers and 1-butanol does not.
Explanation:
Propanoic acids will have a higher boiling point because it forms dimers.
The two compounds have hydrogen bonds as their predominant intermolecular bonds. The intermolecular determines a lot about the physical properties of a substance such as it's viscosity, boiling point, melting point etc.
The two compounds have hydrogen bonds which are bonds that occur between between hydrogen and a more electronegative atom. The electronegative atoms are usually oxygen,nitrogen and fluorine.
In a compound of 1-butanol, we have just a single hydrogen bond between the hydrogen on one compound and the oxygen on the hydroxyl group of another one.
For, propanoic acids, dimerization occurs. Here, we have two hydrogen bonds. The alkanoic acid functional group furnishes the bond. This bond forms between the carbonyl group and hydrogen on a compound and the hydroxyl group and another hydrogen on the same compound.