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3 years ago

To minimize the sharp ph shift that occurs when a strong acid is added to a solution

1 answer:

4 0

To minimize the sharp pH shift that occurs when a strong acid is added to a solution, IT IS PRACTICAL TO ADD A WEAK BASE.
When a strong acid is added to a solution, it usually brings about a sharp change in the pH of the concerned solution. To avoid this, one can add a weak base to the solution first. The weak base will serves as a buffer for the strong acid and prevents the solution from experiencing sharp pH variations.

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What is simple displacement reaction???give examples.

VARVARA [1.3K]

Answer:

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2 years ago

Calcular el tanto por ciento en masa de una disolución que tiene 25 ml de un soluto con una densidad de 0.8 g / cm3, y 500 ml de

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2 years ago

Select the single best answer What is the purpose of an acid-base buffer? OA. To maintain both relatively constant pH and pK, in

Evgesh-ka [11]

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 $pK_{a}$ remains constant.

Therefore, relation between pH and $pK_{a}$ will be as follows.

pH = $pK_{a} + (log \frac{base}{acid})$

Thus, we can conclude that the purpose of an acid-base buffer is to maintain a relatively constant pH in a solution.

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2 years ago

Where do you think water vapor in air comes from?

emmasim [6.3K]

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2 years ago

How many sigma and pie bonds are in the following compound?

ankoles [38]

For the first

H : O : H

Theres two bonds here

Each other are sigma

So 2Sigma bonds present

For the Second

I believe you wanted to write Ethyne....

In a triple bond... Theres 1sigma and 2 Pi bonds

Every single bond is a sigma bond

Counting all

we have

2Pi bonds and 3Sigma bonds

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2 years ago