When the Pka for formic acid = 3.77
and Pka = -㏒ Ka
3.77 = -㏒ Ka
∴Ka = 1.7x10^-4
when Ka = [H+][HCOO-}/[HCOOH]
when we have Ka = 1.7x10^-4 &[HCOOH] = 0.21 m
so by substitution: by using ICE table value
1.7x10^-4 = X*X / (0.21-X)
(1.7x10^-4)*(0.21-X) = X^2 by solving this equation for X
∴X = 0.0059
∴[H+] = 0.0059
∴PH= -㏒ [H+]
= -㏒ 0.0059
= 2.23
They’ll have moved the farthest, since the solvent is best at carrying those kinds of materials.
The name for NaCl is Sodium chloride
<h3>Salt and it's examples.</h3>
Salt is defined as the chemical compound that contains both a positively charged cation.and negatively charged anion.
It is formed by the reaction of acid and base is a neutralisation reaction.
Examples of salt include:
- Sodium Chloride or Common Salt (NaCl)
- Sodium Carbonate or Washing Soda (Na2CO3.10H2O)
- Baking Soda or Sodium Bi-carbonate (NaHCO3)
- Bleaching Powder or Calcium Hypochlorite.
Therefore another name for salt is common salt.
Learn more about salt here:
brainly.com/question/13655717
The upper chambers are called the left and right atria, and the lower chambers are called the left and right ventricles. A wall of muscle called the septum separates the left and right atria and the left and right ventricles
