<span>The effects of acid rain include:
d. All the above
</span>
Ang paglaganap ng mga pelikula ay nagdudulot ng positibo at negatibong epekto nito sa mga mag-aaral. Dahil sa pelikula nakikita at natutuklasan ay kultura ng mga iba’t ibang bansa. Dahil dito nalilinang at lumalawak ang kaalaman sa mga kultura. Kinagigiliwan ng marami ang panonood ng pelikula dahil nakakuha sila ng mga aral at mga bagong kaalaman.
Answer:
Ka = 0.1815
Explanation:
Chromic acid
pH = ?
Concentration = 0.078 M
Ka = ?
HCl
conc. = 0.059M
pH = -log(H+)
pH = -log(0.059) = 1.23
pH of chromic acid = 1.23
Step 1 - Set up Initial, Change, Equilibrium table;
H2CrO4 ⇄ H+ + HCrO4−
Initial - 0.078M 0 0
Change : -x +x +x
Equilibrium : 0.078-x x x
Step 2- Write Ka as Ratio of Conjugate Base to Acid
The dissociation constant Ka is [H+] [HCrO4−] / [H2CrO4].
Step 3 - Plug in Values from the Table
Ka = x * x / 0.078-x
Step 4 - Note that x is Related to pH and Calculate Ka
[H+] = 10^-pH.
Since x = [H+] and you know the pH of the solution,
you can write x = 10^-1.23.
It is now possible to find a numerical value for Ka.
Ka = (10^-1.23))^2 / (0.078 - 10^-1.23) = 0.00347 / 0.0191156
Ka = 0.1815
Hydrogen peroxide in water and adding kool- aid powder to water so the liquid turns red
Galactic is referring to the galaxy and cosmos! :)
