The answer is (3) An electron in the third shell has more energy than an electron in the second shell. The energy of electron will increase when number of shell increase.
Explanation:
Atomic number of Silicon..=14
crop rotation, green manure, and bone meal
Explanation:
I just looked it up. hope it helps
Answer:
2.5 g
Explanation:
I may have misunderstood the question but if there is 10mg of a substance per mL, and there is 250mL, the total would be 10 x 250 = 2500mg = 2.5 g
The acetic acid will dissociate as
We will use Hendersen Hassalbalch's equation here
pH = pKa + log [salt] / [acid]
Where
[Acid] = concentration of protonated form
5.1 = 4.8 + log [salt] / [acid]
1.99= [salt] / [acid]
[salt] +[acid] = 0.5
1.99 [acid] + [acid] = 0.5
[acid] = 0.167 M
[acid] / total concentration = 0.167 / 0.5 = 0.33.4
So percentage = 33.4 % or approx 33 %