Formic acid (hco2h) has a dissociation constant of 1.8 _ 104 m. the acid dissociates 1: 1. what is the [h+] if 0.1 mole of formic acid is dissolved in 1.0 liter of water? use a scientific calculator.

0.9 _ 10^-3 m

4.2 _ 10^-3 m

7.9 _ 10^-3 m

15 _ 10^-4 m

M

Explanation: The equilibrium reaction for dissociation of weak acid is,

initially conc.       c                          0         0

At eqm.              

The expression for dissociation constant is:

when is very very small the, the expression will be,

Now put all the given values in this expression, we get

if two electrons have the same n, the same ℓ, and the same ml, then they are in the same orbital. the pauli exclusion principle states that no two identical fermions (a fancy word for electrons and other subatomic particles like electrons) may occupy the same quantum state in an atom simultaneously.

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.