<span>An ion has an electrical charge because it either has more electrons than protons or it has more protons than electrons. Electrons, which are found in the shells of an atom, have a negative charge, while protons, found in the atom's nucleus, have a positive charge.</span>

3 0

4 years ago

The p K a of hypochlorous acid is 7.530 . A 60.0 mL solution of 0.103 M sodium hypochlorite ( NaOCl ) is titrated with 0.296 M H

IrinaVladis [17]

Answer:

pH of the solution after addition of 8 ml 0,296 molar HCl = 7.94

Explanation:

In this case buffer exist between hypochlorous acid HClO is a weak acid and its conjugate base hypochlorite ion ClO⁻ which are deliver to the solution by NaOCl ( sodium hypochlorite ).

The salt is completely dissociate

[NaOCl] = [ClO⁻]

Using Henderson equation to find pH of this buffer

pH = pKa + log $\frac{[Conjugate base]}{[Acid]}$

or, = 7.53 + log $\frac{60 X 0.103}{8 X 0.296}$

or, = 7.53 + 0.4

or, = 7.94

6 0

3 years ago

Which property is true for metals?

Aleks04 [339]

They're malleable and have high melting and boiling points

8 0

3 years ago