What is the concentration of OH− and pOH in a 0.00072 M solution of Ba(OH)2 at 25 ∘C? Assume complete dissociation.

1 answer:

Mumz [18]2 years ago

3 0

Given :

0.00072 M solution of $Ba(OH)_2$ at $25^oC$ .

To Find :

The concentration of $OH^-$ and pOH .

Solution :

1 mole of $Ba(OH)_2$ gives 2 moles of $OH^-$ ions .

So , 0.00072 M mole of $Ba(OH)_2$ gives :

$[OH^-]=2 \times 0.00072\ M$

$[OH^-]=0.00144\ M$

$[OH^-]=1.44\times 10^{-3}\ M$

Now , pOH is given by :

$pOH=-log[OH^-]\\\\pOH=-log[1.44\times 10^{-3}]\\\\pOH=2.84$

Hence , this is the required solution .

You might be interested in

Setler [38]

Answer:

marine biology

coastal ecology

astronomy

meteorology

Explanation:

As a college student, to study oceanography one will have to take classes in the field of marine biology, coastal ecology, astronomy and meteorology.

An oceanographer is someone or a professional that studies the ocean in order have more scientific knowledge about them.

Oceanography is a merger of geology, biology, chemistry, physics as it pertains to the ocean.

There is no need to study human anatomy to study oceanography.
Marine biology and coastal ecology deals with study of life forms in their marine environment.
Astronomy and meteorology helps to gain insight about the formation of the ocean and how weather relates to the ocean.

5 0

3 years ago

Usimov [2.4K]

Here ya go if you need the link we’re I found this answer key https://studylib.net/doc/8708211/exam-2---chemistry