Write a balanced equation and ka expression for the brønsted-lowry acid h2aso4− in water. (in the balanced equation, be sure to indicate the state of each species and any charge associated with it.)

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:

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.