Write a balanced equation and Ka expression for the Brønsted-Lowry acid H2AsO4− in water. (In the balanced equation, be sure to
1 answer:
Answer and Explanation:
The balanced equation for the dissociation of H₂AsO₄⁻ in water (aqueous medium= aq) is the following:
H₂AsO₄⁻ (aq) ⇆ H⁺(aq) + HAsO₄²⁻(aq)
The monovalent anion H₂AsO₄⁻ loses a proton (H⁺) and forms the divalent anion HAsO₄²⁻.
The equilibrium constant Ka is calculated is given by the relation between the concentrations of products and reactants as follows:
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The dissociation reaction of HNO₃ is the following:
HNO₃ → H⁺ + NO₃⁻
This is a strong acid, so the concentration of HNO₃ would be the same as the concentration of H⁺. The formula for pH is the following:
![pH=-log([H_3O^{+}])=-log(0,75M)=0,12](https://tex.z-dn.net/?f=pH%3D-log%28%5BH_3O%5E%7B%2B%7D%5D%29%3D-log%280%2C75M%29%3D0%2C12)
So, the pH would be 0,12
Have a nice day!
The dissociation reaction of HNO₃ is the following:
HNO₃ → H⁺ + NO₃⁻
This is a strong acid, so the concentration of HNO₃ would be the same as the concentration of H⁺. The formula for pH is the following:
So, the pH would be 0,12
Have a nice day!
Explanation:
Dipole moment is defined as the measurement of the separation of two opposite electrical charges.
is a bent shaped molecule with a dipole moment of 1.87.
is also a bent shaped molecule with a dipole moment of 1.10.
is a also a bent shaped molecule and has a negligible dipole moment.
has a dipole moment of 0.29.
Therefore, given molecules are arranged according to their increasing dipole moment as follows.
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