Answer:
Ideal gas explains the property of gas that has no inter-molecular attractions irrespective of temperature and pressure.
<u>Explanation:</u>
- Ideal gases assumes that the gases would experience no inter-molecular attraction and collision with other gases.
- These gases are perfectly exhibiting elastic collision in nature.
- The particle of gases moves slowly at lower temperature and the gases would become close when they exhibit high pressure.
- The "closeness of the gas-particle" and "low-speed characteristics" are the important observations noted.
- The inter-molecular forces deviate the property of gases from ideal gas behavior.
Answer:
Its either B or D. I personally would go with B
Explanation:
Na releases 1 electron to be stable
Cl requires 1 electron to be stable
both are ionic bonded to be stable
Answer:
c. 0.2 M HNO₃ and 0.4 M NaF
.
Explanation:
A buffer is defined as the mixture of a weak acid with its conjugate base or a weak base with its conjugate acid.
A weak acid or weak base are defined as an acid or base that partially dissociates in aqueous solution. in contrast, a strong acid or base are acids or bases that is dissociated completely in water.
Thus:
a. 0,2M HNO₃ and 0.4 M NaNO₃. This is a mixture of a strong acid with its conjugate base. <em>IS NOT </em>a buffer.
b. 0.2 M HNO₃ and 0.4 M HF
. This is a mixture of two strong acids. <em>IS NOT </em>a buffer.
c. 0.2 M HNO₃ and 0.4 M NaF
. NaF is the conjugate base of a weak acid as HF is.
The reaction of HNO₃ with NaF is:
HNO₃ + NaF → HF + NaNO₃
That means that in solution you will have a weak acid (HF) with its conjugate base (NaF). Thus, this mixture <em>IS </em>a buffer.
d. 0.2 M HNO₃ and 0.4 M NaOH. This is the mixture of a strong acid with a strong base, thus, this <em>IS NOT </em>a buffer.
I hope it helps!
