Answer:
The <u>concentration of hydronium ions</u> and the pH value is related by the equation: <u> pH=-Log[H+]</u>
Explanation:
We have two different concepts pH and concentration of <u>hydronium ions</u>. Lets start with the hydronium ion.
An hydronium ion is a species that is produced by an <u>acid</u>:

Aditionally, we can have the production of <u>hydroxide ions</u>. The subtances that have the capacity to produce this ions are called <u>"bases"</u>:

Now we can continue "pH"
The <u>pH is a scale</u> that indicates if the substance is and <u>acid</u> (higher concentration of
), <u>neutral</u> (equal amounts of
and
) or <u>basic</u> (higher amount of
).
Finally, the "pH" is calculated with the concentration of the hydronium ions (
), the letter <u>"p" is "-Log"</u>, therefore:
![pH=-Log[H^+] ](https://tex.z-dn.net/?f=pH%3D-Log%5BH%5E%2B%5D%0A)
I hope it helps!
Answer:
0.0376
Explanation:
CH4(g) + 2 H2S(g) ⇌ CS2(g) + 4 H2(g)
start 0.5 0.75 0 0
change -0.11 -0.22 +0.11 +0.44
equilibrium 0.39 0.53 0.11 0.44
![K_{c}=\frac{products}{reactants} =\frac{[CS_{2}][H_{2}]^{4}}{[CH_{4}][H_{2}S]^{2}}=\frac{[0.11][0.44]^{4}}{[0.39][0.53]^{2}} =0.0376](https://tex.z-dn.net/?f=K_%7Bc%7D%3D%5Cfrac%7Bproducts%7D%7Breactants%7D%20%3D%5Cfrac%7B%5BCS_%7B2%7D%5D%5BH_%7B2%7D%5D%5E%7B4%7D%7D%7B%5BCH_%7B4%7D%5D%5BH_%7B2%7DS%5D%5E%7B2%7D%7D%3D%5Cfrac%7B%5B0.11%5D%5B0.44%5D%5E%7B4%7D%7D%7B%5B0.39%5D%5B0.53%5D%5E%7B2%7D%7D%20%3D0.0376)
I think about 67 students because if you divide 570 by the amount each person needs you get 67.0588235294 so you have to round down
Answer:
63 moles of carbon atoms, 115.5 moles of hydrogen atoms, and 57.75 moles of oxygen atoms i believe :)
Answer:
a
Explanation:
because na + has 11 electrons and has a higher chance to give away one then to gain 7 more. so the answer is a