Technically speaking, yes you can. Using a microscope though.
Answer:
28.45L
Explanation:
1mole of a gas occupy 22.4L at stp. This implies that 1mole of He also occupy 22.4L at stp.
Now if 1mole of He occupied 22.4L at stp, then, 1.27mol will occupy = 1.27x22.4 = 28.45L
Answer:
Keq = 1.17 × 10²⁰
Explanation:
Let's consider the following redox reaction.
Cu²⁺(aq) + Ni(s) → Cu(s) + Ni²⁺(aq)
We can identify 2 half-reactions.
Cathode (reduction): Cu²⁺(aq) + 2 e⁻ → Cu(s) E°red = 0.337 V
Anode (oxidation): Ni(s) → Ni²⁺(aq) + 2 e⁻ E°red = -0.257 V
The standard cell potential (E°) is the difference between the standard reduction potential of the cathode and the standard reduction potential of the anode.
E° = E°red, cat - E°red, an = 0.337 V - (-0.257V) = 0.594 V
We can calculate the equilibrium constant (Keq) using the following expression.
![E\°=\frac{0.0592V}{n} logKeq](https://tex.z-dn.net/?f=E%5C%C2%B0%3D%5Cfrac%7B0.0592V%7D%7Bn%7D%20logKeq)
where,
n are the moles of electrons transferred
![0.594V=\frac{0.0592V}{2} logKeq\\Keq = 1.17 \times 10^{20}](https://tex.z-dn.net/?f=0.594V%3D%5Cfrac%7B0.0592V%7D%7B2%7D%20logKeq%5C%5CKeq%20%3D%201.17%20%5Ctimes%2010%5E%7B20%7D)
Physical is something you can see with your eyes Chemical is something you can not
Answer:
human impact, hurricanes, and sinkholes
Explanation: