2.94
×
10
24
⋅
molecules
6.022
×
10
23
⋅
molecules
⋅
mol
−
1
×
142.3
⋅
g
⋅
mol
−
1
≅
700
⋅
g
When the solution is pure water so,
Kw = [OH-][H3O+]
when [OH-] = [H3O+] we can assume both = X
and Kw = 1.47 x 10^-14
by substitution:
1.47 x 10^-14 = X^2
∴ X = √(1.47 x 10^-14)
= 1.2 x 10^-7 M
Answer:
1) Ionic compounds are hard and brittle.
2) Ionic compounds have high melting and boiling points.
Answer:
Meter.
Explanation:
Hello,
In this case, The SI unit of length equal to the distance light travels in a vacuum in 1/299 792 458 of a second is the meter as the physical standard used to establish such length.
Regards.