4. Which is produced when a base reacts with water?
2 answers:
Answer:
ions.
Explanation:
Hydrogen ions (H+) are attracted to the negative oxygen end of a water molecule, combining to form hydronium ions.
Base: Very definition of base is that it produces OH- on dissolution with water. Bases have a pH greater than 7. A base is any substance that dissolves in water and produces hydroxide ions (OH-).
You might be interested in
Answer: Option (b) is the correct answer.
Explanation:
The given data is as follows.
mass = 0.508 g, Volume = 0.175 L
Temperature = (25 + 273) K = 298 K, P = 1 atm
As per the ideal gas law, PV = nRT.
where, n = no. of moles =
Hence, putting all the given values into the ideal gas equation as follows.
PV =
1 atm \times 0.175 L =
= 71.02 g
As the molar mass of a chlorine atom is 35.4 g/mol and it exists as a gas. So, molar mass of is 70.8 g/mol or 71 g/mol (approx).
Thus, we can conclude that the gas is most likely chlorine.