Answer:
Explanation:
HCl is strong acid, hence 0.04M of acid
= 0.057 M of H+
pH = -log [H+]
= -log [0.057]
= 1.244
Let the dissociation of trichloroacetic acid be:
HClO4 --> H^+ + ClO4^-
HA --> H+ + A-
0.072 - x x x
[H+] = 0.057 M
[HA] = 0.072 - 0.057
= 0.015 M
[H+] = [A-] = 0.057
Ka = [H+][A-]/[HA]
= (0.057^2)/(0.015)
= 0.217
= 0.22.
Answer:
270
Explanation:
Once you add more mass to something the mass doesn’t go away you add more mass.
hope this helps!
Answer: It increases the rate of desulfurization at a constant feed rate
Explanation:
You would have to run 100 kilometers across it once. Then you will have to run 10 meters across it because a football field is 110 meters according to the NFL’s website
Answer:
Products will be K2SO4 and Cu(NO3)2. A precipitate will not form.
Explanation:
Double replacement reactions are the switching of cations between two compounds. So in this case, the K+ and Cu 2+ cations will switch places.
KNO3 + CuSO4 -> K2SO4 + Cu(NO3)2
According to solubility rules, any substances containing NO3 or a Group 1 ion (K+ in this case) will be definitely soluble. There are a few exceptions to the Group 1 rule but it does not apply here. Potassium sulfate (K2SO4) contains a Group 1 ion so it will be soluble and not be a precipitate. And copper nitrate (Cu(NO3)2) contains nitrate so it will also be soluble and not be a precipitate.
