Answer:
Ka = 6.15x10⁻⁷
Explanation:
Ka is defined as dissociation constant in the equilibrium of a weak acid with water. The general reaction is:
HA(aq) + H₂O(l) ⇆ H₃O⁺(aq) + A⁻(aq)
And Ka is defined as the ratio between molar concentrations in equilibrium of products over reactants as follows:
Ka = [H₃O⁺] [A⁻] / [HA]
<em>You don't take water in the equilibrium beacuse is a pure liquid</em>
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Replacing with the concentrations of the problem:
Ka = [H₃O⁺] [A⁻] / [HA]
Ka = [4.00x10⁻⁴] [4.00x10⁻⁴] / [0.260]
<h3>Ka = 6.15x10⁻⁷</h3>
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Answer:
The reaction will occur naturally.
the reaction is spontaneous I think
Explanation:
Answer: They are not related
Explanation: All living things have the same way of transferring genetic information, trough the DNA molecule.
Many heavy radioactive atoms release alpha particles which are identical to helium-4 atoms. It is expected that emission of alpha particle will decrease the number of electrons and the original atom obtains positive charge. However, emission of one alpha particle decreases the atomic number of the original atom by 2 and the mass number decreases by 4. This is because atomic number of helium atom is 2 and the mass number is 4. As a result a new atom is formed. This is the product of the radioactive reaction.