Answer:
B
Explanation:
b/c air is not seen by eye
Nickel hydroxide
Ni(OH)₂
1 atom of Ni
2 atom of O
2 atom of H
answer B
hope this helps!
Answer:
422 torr
Explanation:
According to Dalton's law of partial pressure, the total pressure exerted by a mixture of gases is the sum of their individual/partial pressure. Mathematically, this can be expressed as:
In this case, = 137 torr, = 285 torr, hence
=
= 137 + 285
= 422 torr
The partial pressure of SO2Cl2 in this mixture is 422 torr.
I wanna say milliliter but I’m not sure
The first dissociation for H2X:
H2X +H2O ↔ HX + H3O
initial 0.15 0 0
change -X +X +X
at equlibrium 0.15-X X X
because Ka1 is small we can assume neglect x in H2X concentration
Ka1 = [HX][H3O]/[H2X]
4.5x10^-6 =( X )(X) / (0.15)
X = √(4.5x10^-6*0.15)
∴X = 8.2 x 10-4 m
∴[HX] & [H3O] = 8.2x10^-4
the second dissociation of H2X
HX + H2O↔ X^2 + H3O
8.2x10^-4 Y 8.2x10^-4
Ka2 for Hx = 1.2x10^-11
Ka2 = [X2][H3O]/[HX]
1.2x10^-11= y (8.2x10^-4)*(8.2x10^-4)
∴y = 1.78x10^-5
∴[X^2] = 1.78x10^-5 m