explain why particles of colloidal solution donot settle down when left undisturbed , while in the case of suspensions they do .
1 answer:
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Answer:
Concentration of OH⁻:
1.0 × 10⁻⁹ M.
Explanation:
The following equilibrium goes on in aqueous solutions:
.
The equilibrium constant for this reaction is called the self-ionization constant of water:
.
Note that water isn't part of this constant.
The value of at 25 °C is
. How to memorize this value?
- The pH of pure water at 25 °C is 7.
- However,
for pure water.
- As a result,
at 25 °C.
Back to this question. is given. 25 °C implies that
. As a result,
.