Think about the typical weather conditions where you live. What is the name of the average yearly weather patterns in any one ar
1 answer:
You might be interested in
Answer: Option (B) is the correct answer.
Explanation:
An aqueous solution that consists of a mixture of weak base and its conjugate acid or a weak acid and its conjugate base is known as a buffer.
When we add a strong acid or base into this mixture then the change in pH of this mixture is very small.
In a buffer solution, pH depends on the ratio of concentration of base divided by concentration of acid.
It is known that for a given temperature, the value of remains constant.
Therefore, relation between pH and will be as follows.
pH =
Thus, we can conclude that the purpose of an acid-base buffer is to maintain a relatively constant pH in a solution.
Answer:
<h3>The answer is 0.045 kg/cm³</h3>Explanation:
The density of a substance can be found by using the formula
From the question
mass of cylinder = 14 kg
Volume of a cylinder = πr²h
where
r is the radius
h is the height
From the question
h = 25 cm
The volume of the cylinder is
We have
volume = 314.159 cm³
The density of the cylinder is
We have the final answer as
<h3>0.045 kg/cm³</h3>Hope this helps you