Answer:
Explanation:
Plasma is the 4rth state of matter
Plasma is essentially composed of mixtures of ions and electrons .the ions and electrons are mixed containing equal amounts of positive and negative charges .
Number of moles:
n = M x V
n = 0.002915 x 1.25
n = 0.00364375 moles
Organic chemistry was definitely harder for me, though this is a matter of opinion and learning style. If you are good with logic, then organic chemistry might not be so hard, or at least that's what my professor said. A lot of physics was just knowing how to use formulas and then plugging and chugging, and knowing basic outcomes of physical reactions. It's a whole other story if you take calculus based physics.
Good luck.
Answer:
3.18x10⁻³
Explanation:
The equilibrium of a weak acid can be written as:
And Ka can be expressed as:
- Ka=
![\frac{[H^+][A^-]}{[HA]}](https://tex.z-dn.net/?f=%5Cfrac%7B%5BH%5E%2B%5D%5BA%5E-%5D%7D%7B%5BHA%5D%7D)
<u><em>Keep in mind that [H⁺] = [A⁻]</em></u>.
We can<u> calculate [H⁺] from the pH</u>:
- [H⁺]=
=0.0158
Now we <u>compute the calculated [H⁺]</u> (and [A⁻]) <u>with the [HA] given by the problem</u>:
Ka = 
= 3.18x10⁻³
