Answer:
Well rust just because the rain and wind sun whatever its meatal it stayed outside too long!
Explanation:
I really dont kno but i hope im right
Answer: 0.0416 moles BaCl2 or 4.16x10-2 moles BaCl2
Explanation: solution just multiply the given value 8.62g x 1mol BaCl2/207g which is the molar mass of barium chloride.
Answer:
HOCl is such a weak acid that the basicity of the OCl⁻ predominates in the mixture.
Explanation:
HOCl is a weak acid with pKₐ 7.53. NaOCl is its salt. A solution of a weak acid and its salt is a buffer. We can calculate the pH of the buffer.
Step 1. <em>Write the equation</em> for the equilibrium
HOCl + H₂O ⇌ H₃O⁺ + OCl⁻; pKa = 7.53
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Step 2. <em>Calculate the pH</em> of the buffer
The <em>Henderson-Hasselbalch equation</em> is
pH = pKₐ + log([OCl⁻]/[HOCl])
pH = 7.53 + log(0.15/0.15)
pH = 7.53 + log1
pH= 7.53 + 0
pH = 7.53
So, the solution is basic.
The conjugate base of a weak acid is a relatively strong base.
HOCl is such a weak acid that the basicity of its conjugate base predominates in an equimolar mixture of the two components.
Answer:
This is because all of the Noble Gases have complete valence electron shells. Most elements 'want' to have a complete electron shell with 8 electrons. Since the Noble Gases already have that 'perfect status' then they have an affinity of 0.Affinity is the change in energy of the atom when an electron is added.
Explanation:
It is a) a non metal.
Remember: most metals are malleable (the opposite of brittle) and conduct electricity well.
