Answer:
Earth's gravity is strong enough to hold onto its atmosphere and keep it from drifting into space.
Answer:
I'm unaware of what but maybe hot sauce?
Explanation:
Answer:
They would look exactly like her, when you produce asexually your offspring is a clone of you. The offspring is genetically identical to the parent.
Explanation:
Answer
The empirical formula is CrO₂Cl₂
Explanation:
Empirical formula is the simplest whole number ratio of an atom present in a compound.
The compound contain, Chromium=33.6%
Chlorine=45.8%
Oxygen=20.6%
And the molar mass of Chromium(Cr)=51.996 g mol.
Chlorine containing molar mass (Cl)= 35.45 g mol.
Oxygen containing molar mass (O)=15.999 g mol.
Step-1
Then,we will get,
Cr=
mol
Cl=
mol.
O=
mol.
Step-2
Divide the mole value with the smallest number of mole, we will get,
Cr=
![\frac{0.64}{0.64} =1](https://tex.z-dn.net/?f=%5Cfrac%7B0.64%7D%7B0.64%7D%20%3D1)
Cl=
![\frac{1.29}{0.64} =2](https://tex.z-dn.net/?f=%5Cfrac%7B1.29%7D%7B0.64%7D%20%3D2)
O=
![\frac{1.28}{0.64} =2](https://tex.z-dn.net/?f=%5Cfrac%7B1.28%7D%7B0.64%7D%20%3D2)
Then, the empirical formula of the compound is CrO₂Cl₂ (Chromyl chloride)
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,
![r = \dfrac{a}{2\sqrt{2}}](https://tex.z-dn.net/?f=r%20%3D%20%5Cdfrac%7Ba%7D%7B2%5Csqrt%7B2%7D%7D)
where;
a = edge length.
Making "a" the subject of the formula:
![a = 2 \sqrt{2} \times r](https://tex.z-dn.net/?f=a%20%3D%202%20%5Csqrt%7B2%7D%20%5Ctimes%20r)
![a = 2 \times 1.414 \times 135 \ pm](https://tex.z-dn.net/?f=a%20%3D%202%20%5Ctimes%201.414%20%5Ctimes%20135%20%5C%20pm)
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;
![mass\ of\ atom =\dfrac{ atomic \ mass}{Avogadro \ number}](https://tex.z-dn.net/?f=mass%5C%20%20of%5C%20atom%20%3D%5Cdfrac%7B%20atomic%20%5C%20mass%7D%7BAvogadro%20%20%5C%20%20number%7D)
![mass\ of\ atom =\dfrac{ 102.9}{6.023 \times 10^{23}}](https://tex.z-dn.net/?f=mass%5C%20%20of%5C%20atom%20%3D%5Cdfrac%7B%20102.9%7D%7B6.023%20%5Ctimes%2010%5E%7B23%7D%7D)
Recall also that number of atoms in a unit cell for a face-centered cubic = 4
So;
![mass \ of \ unit \ cell= \dfrac{102.90}{6.023 \times 10^{23}}\times 4](https://tex.z-dn.net/?f=mass%20%5C%20of%20%5C%20unit%20%5C%20cell%3D%20%5Cdfrac%7B102.90%7D%7B6.023%20%5Ctimes%2010%5E%7B23%7D%7D%5Ctimes%204)
mass of unit cell = 6.83380375 × 10⁻²² g
![Density \ of \ unit \ cell = \dfrac{6.83380375 \times 10^{-22}}{(381.8\times 10^{-10})^3}](https://tex.z-dn.net/?f=Density%20%20%5C%20of%20%20%5C%20unit%20%5C%20%20cell%20%3D%20%5Cdfrac%7B6.83380375%20%5Ctimes%2010%5E%7B-22%7D%7D%7B%28381.8%5Ctimes%2010%5E%7B-10%7D%29%5E3%7D)
Density of unit cell ( rhodium) = 12.279 g/cm³