Answer:
Sodium dihydrogenphosphate = NaH₂PO₄
Sodium monohydrogenphosphate = Na₂HPO₄
Explanation:
A buffer solution is a solution is a solution that resists changes to its oH when a little quantity of strong acid or strong base is added to it.
They are solutions of weak acids or weak bases and their salts known as conjugate base or conjugate acids respectively for the weak acids and weak bases.
For example, a solution of the weak acid ethanoic acid and its salt or conjugate base, sodium ethanoate serves as a buffer solution.
In biochemical experiments, where the pH of the reaction medium is kept as constant and as close as possible to that of the internal environment, buffer solutions are widely used. One of the commonly used buffers is the phosphate buffer. The phosphate buffer consists of the acid salts sodium dihydrogenphosphate and sodium monohydrogenphosphate. Sodium dihydrogenphosphate serves as the weak acid while sodium monohydrogenphosphate serves as the conjugate base.
The formulas of these two compounds are given below:
Sodium dihydrogenphosphate = NaH₂PO₄
Sodium monohydrogenphosphate = Na₂HPO₄
Answer:
A Longitudinal Wave is _____.
D.a wave that the medium is displaced parallel to the direction of the wave, such as a sound wave in the air
Explanation:
Sound : It is the mechanical energy that causes sensation of hearing to the ear.
Sound is produce by the vibrating objects .
Vibration : To and fro motion of the object.
The vibrating motion of particle creates two region of air pressure:
- Compression : A region of high - pressure
- Rarefaction : A region of low- pressure
Hence , Sound wave travels by forming compression and rarefaction.
This disturbance in particles of air is called : Wave
The waves are classified into two parts :
1. Longitudinal wave : These are those waves in which particles of medium travel parallel to the propagation of the wave.They both <u>travel in same direction.</u>
<u>Sound wave </u>is longitudinal wave
2. transverse wave : These are those wave in which particle of medium travel perpendicular to the direction of wave . If particles travel along x-axis then wave along y or z- axis.
example : Light (or electromagnetic wave) is transverse wave
<u>Look at the attached images : </u>