Compare the orbital notations of the substances investigated in this experiment with their attraction to the magnet. What unique
1 answer:
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PH + pOH = pKw = 14
12.40 + pOH = 14
pOH = 14 - 12.40
pOH = 1.6
[OH⁻] =
[OH⁻] =
[OH⁻] = 2.5x10⁻² M
hope this helps!
12.40 + pOH = 14
pOH = 14 - 12.40
pOH = 1.6
[OH⁻] =
[OH⁻] =
[OH⁻] = 2.5x10⁻² M
hope this helps!
Answer:
Density of unit cell ( rhodium) = 12.279 g/cm³
Explanation:
Given that:
The radius (r) of a rhodium atom = 135 pm
The atomic mass of rhodium = 102.90 amu
For a face-centered cubic unit cell,
where;
a = edge length.
Making "a" the subject of the formula:
a = 381.8 pm
to cm, we get:
a = 381.8 × 10⁻¹⁰ cm
However, recall that:
where;
mass of unit cell = mass of atom × numbers of atoms per unit cell
Also;
Recall also that number of atoms in a unit cell for a face-centered cubic = 4
So;
mass of unit cell = 6.83380375 × 10⁻²² g
Density of unit cell ( rhodium) = 12.279 g/cm³