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Tju [1.3M]
3 years ago
7

Explain how a Buffer acts to resist pH change in a system upon addition of an acid or a base

Chemistry
1 answer:
Leokris [45]3 years ago
4 0

Answer:

Explanation has been given below.

Explanation:

  • A buffer consists of either of a weak acid along with it's conjugate base or a weak base along with it's conjugate acid.
  • Let's consider a buffer consists of a weak acid along with it's conjugate base
  • If we add an acid to this buffer then conjugate base gets protonated and converted to corresponding weak acid. So effect of addition of acid gets neutralized by forming weak acid rather than increase in concentration of proton in solution.
  • If we add a base to this buffer then weak acid gets converted to corresponding conjugate base. So effect of addition of base gets neutralized by forming conjugate base rather than in crease in concentration of hydroxyl ion in solution.
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Why do we need to be aware of the sound intensity of certain things
Alex

Answer:

It may blow your eardrums, or affect your hearing in other ways.

hope this helps! plz mark brainliest :)

3 0
2 years ago
How many bonding domains around the central atom and nonbonding domains around the central atom are their in PF4Cl?
Greeley [361]

Answer:

NH2- has two pairs of bonding and two pairs of non-bonding electrons participated in the formation of a molecule. The central nitrogen atom has two pairs of non-bonding electrons cause repulsion on both bonding pairs which pushes the bonds closer to each other. So, NH2- has a bent (angular) molecular geometry.

Explanation:

7 0
3 years ago
Give the hybridization for the br in bro4⁻.
elixir [45]

The hybridization for the Br in BrO4⁻ is sp^{3}. So, the correct option is (e).

In chemistry, the idea of combining atomic orbitals to create new hybrid orbitals (with different energies, shapes, etc., than the component atomic orbitals) is known as orbital hybridisation (or hybridization). These new hybrid orbitals are suitable for the pairing of electrons to form chemical bonds in valence bond theory.

Because more directional hybridised orbitals result in higher overlap when creating bonds, stronger bonds are formed, which favours the hybridization of orbitals. When hybridization takes place, this leads to more stable molecules.

One s orbital and three p orbitals combine to form four sp^{3} orbitals, each of which has a 25% s character and a 75% p character. This process is known as sp^{3} hybridization. Anytime an atom is surrounded by four groups of electrons, this kind of hybridization is necessary.

Learn more about hybridization here:

brainly.com/question/12207339

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8 0
2 years ago
What is the product(s) of the reaction below?
sladkih [1.3K]

Answer:

A. Solid aluminum oxide and solid iron

Explanation:

The reaction equation is given as:

    2Al  +   Fe₂O₃  →   Al₂O₃   + 2Fe

The species on the left hand side are the reactants

Those on the right hand side of the expression are the products.

The products are:

Al₂O₃   and Fe

 These are solid aluminum oxide and solid iron

3 0
3 years ago
3) Rubidium reacts with rubidium nitrate to produce rubidium oxide and nitrogen gas
postnew [5]

Answer:

3) Rubidium reacts with rubidium nitrate to produce rubidium oxide and nitrogen gas

a- Write the chemical reaction

10Rb + 2RbNO3 → 6Rb2O + N2

5 0
3 years ago
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