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Chromium has a body-centered cubic unit cell How many atoms of rm Cr are present in each unit cell?
Wiki User
∙ 13y ago
1) Use the Pythagorean Theorem to calculate d, the edge length of the unit cell:d2 + (d√2)2 = (4r)2
3d2 = 16r2
d2 = (16/3) (1.25 x 10-8 cm)2
d = 2.89 x 10-8 cm
2) Calcuate the volume of the unit cell:(2.89 x 10-8 cm)3 = 2.41 x 10-23 cm3
3) Calcuate the mass inside the unit cell:each atom: 52g mol-1 / 6.022 x 1023 mol-1 = 8.64 x 10-23g two atoms/unit cell: 8.64 x 10-23g x 2 = 1.73 10-23g
4) Density = mass/volume = 1.73 10-23g / 2.41 x 10-23 cm3 = 7.17g/cm3
Wiki User
∙ 11y ago
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Would chromium float or sink in Mercury?
Chromium, with a density of 7.19 gm/cubic centimeter, will float on liguid mercury, with a density of 13.5 gm per cubic centimeter.
How many atoms are in simple cubic?
1
Why uncharged atoms or molecules never crystallize in simple cubic structures?
Uncharged molecules and atoms are packed more efficiently in closed-packet structures. Hence theses uncharged molecules and atoms do not crystallize in simple cubic structures.
What is a face centered cubic crystal?
A face-centered cubic unit cell is a cube. All sides are the same length and all face perpendicular to each other, with an atom at each corner and an atom in the middle of each face of the cell.
How many atoms of mercury are present in 9.1 cubic centimeters of liquid mercury?
Density = mass/volume ( Mercury is 13.534 grams/milliliter, and milliliter = cubic centimeter ) 13.534 g/ml = grams/9.1 cc (or ml) = 123.1594 grams of Hg ( Mercury) 123.1594 grams Hg (1 mole Hg/200.6 grams)(6.022 X 10^23/1 mole Hg) = 3.7 X 10^23 atoms of mercury
Would chromium float or sink in Mercury?
Chromium, with a density of 7.19 gm/cubic centimeter, will float on liguid mercury, with a density of 13.5 gm per cubic centimeter.
How many atoms of mercury are present in 2.7 cubic centimeters of liquid mercury the density of mercury is 13.55 gcc need the answer in unit of atoms?
2.749394 x 10(-23)
Silver has a face-centered cubic unit cell How many atoms of rm Ag are present in each unit cell?
4
What is the metal that has a mass of 35.00 g and a volume of 4.8951 cubic centimeters?
This element is chromium; density=mass/volume. Density of chromium is 7,15 g/cm3.
How many atoms are in simple cubic?
1
What is described by the terms body-centered cubic and face-centered cubic?
The arrangement of atoms or ions in a crystal.
The cubic shape of a mineral crystal is most likely the result of that crystal's?
internal arrangement of atoms
Why uncharged atoms or molecules never crystallize in simple cubic structures?
Uncharged molecules and atoms are packed more efficiently in closed-packet structures. Hence theses uncharged molecules and atoms do not crystallize in simple cubic structures.
How many mercury atoms are in 7.6 cubic centimeters of liquid mercury?
The number of mercury atoms is 11,74458.10e23.
How many Silicon atoms in a cubic unit cell?
8
Type of bond present in a diamond?
According to Wikipedia:"A diamond is a transparent crystal of tetrahedrally-bonded carbon atoms in a covalent network lattice that crystallizes into the diamond lattice which is a variation of the face centered cubic structure."
What is a face centered cubic crystal?
A face-centered cubic unit cell is a cube. All sides are the same length and all face perpendicular to each other, with an atom at each corner and an atom in the middle of each face of the cell.
