A=11.535 2. Determine the density of the garnet endmember pyrope (Mg3Al2Si3O12) using the unit cell dimensions...
A=11.535
2. Determine the density of the garnet endmember pyrope (Mg3Al2Si3O12) using the unit cell dimensions given above.
(a) Determine the unit cell volume in Å3.
(b) Each unit cell of pyrope contains 8 formula units of Mg3Al2Si3O12. Remembering that 1 mole contains Avogadro's number of formula units, how many unit cells make up one mole of pyrope?
(c) Calculate the volume, in Å3, of 1 mole of pyrope.
(d) Convert the answer from Å3 to cm3. Be careful with your unit
conversions!
(e) Calculate the mass in grams of 1 mole of pyrope by summing the atomic masses of its elemental components. You will need to use a periodic table in order to do this.
(f) Calculate the density (in g/cm3) of pyrope from the volume you calculated in (d) and the mass you calculated in (e). Once you have done this, perform a “reality check” on your answer. Does it make sense if you compare it to the range of Specific Gravity known for garnet? If not, then you have done something wrong. Go back and check your unit conversions.
Homework Answers
Add Answer to:
A=11.535
2. Determine the density of the garnet endmember pyrope
(Mg3Al2Si3O12) using the unit cell dimensions...
Given: -garnet endmember pyrope (Mg3Al2Si3O12) -side length=11.535 A -volume=1534.8A -volume of 1 mole of pyrope is...
Given: -garnet endmember pyrope (Mg3Al2Si3O12) -side length=11.535 A -volume=1534.8A -volume of 1 mole of pyrope is 1.1552 x 1026 Å3 find: (e) Calculate the mass in grams of 1 mole of pyrope by summing the atomic masses of its elemental components. You will need to use a periodic table in order to do this. (f) Calculate the density (in g/cm3) of pyrope from the volume you calculated in (d) and the mass you calculated in (e). Once you have done...
Given: -garnet endmember pyrope (Mg3Al2Si3O12) -side length=11.535 A -volume=1534.8A -volume of 1 mole of pyrope is...
Given: -garnet endmember pyrope (Mg3Al2Si3O12) -side length=11.535 A -volume=1534.8A -volume of 1 mole of pyrope is 1.1552 x 1026 Å3 find: (e) Calculate the mass in grams of 1 mole of pyrope by summing the atomic masses of its elemental components. You will need to use a periodic table in order to do this. (f) Calculate the density (in g/cm3) of pyrope from the volume you calculated in (d) and the mass you calculated in (e). Once you have done...
The element W has bcc packing with a body-centered cubic unit cell. The density of tungsten...
The element W has bcc packing with a body-centered cubic unit cell. The density of tungsten is 19.3 g/cm3 and the cell volume is 3.170 x 10-23 mL. Calculate the value of Avogadro's number to three significant figures based on these data. The element xenon has ccp packing with a face-centered cubic unit cell. The density of Xe is 3.78 g/cm3. Calculate the volume (m3) of the unit cell of xenon.
Unit Cell Calculations Name _____________________________ Unit Cells: The Simplest Repeating Unit in a Crystal The structure...
![](https://lh4.googleusercontent.com/K_IdXKabFLhtXXOIgQQGWz-LYlYNPa5z9cPt6FQy3eCY_hrY26qZS8XFBDdXJxqT5rgw1lAAnw6EBuTmrr7-OGOL5RkSwGNWJ97ys65Nc5ZjNeeCGSQ-UGT6SRqFEqehUHwDJLPp" aria-describedby="jt3"><img alt="unitcell1.png)
Unit Cell Calculations Name
_____________________________
Unit Cells: The Simplest Repeating Unit in a Crystal
The structure of solids can be described as if they were
three-dimensional analogs of a piece of wallpaper. Wallpaper has a
regular repeating design that extends from one edge to the other.
Crystals have a similar repeating design, but in this case the
design extends in three dimensions from one edge of the solid to
the other. We can unambiguously describe a piece of wallpaper by...
Aluminum (Al) has FCC unit cell geometry and lattice parameter 4.0 Å. a. How many complete...
Aluminum (Al) has FCC unit cell geometry and lattice parameter 4.0 Å. a. How many complete atoms are contained in one unit cell? b. What is the atomic radius (Å)? c. What is the unit cell volume? d. If the atomic mass of Al is 27 grams per mole (or amu), what is an Al atom’s mass in grams? e. What is the mass of the unit cell? f. What is the density of Al in units of atomic mass...
Solid silver adopts the fcc structure. (i) Determine the number of Ag atoms per fundamental unit cell (nuc;) determine the volume of the fundamental unit cell (Vuc in nm3); (ii) determine the radius...
Solid silver adopts the fcc structure. (i) Determine the number of Ag atoms per fundamental unit cell (nuc;) determine the volume of the fundamental unit cell (Vuc in nm3); (ii) determine the radius of a single Ag atom (in nm); (iv) the volume (space) within the fundamental unit cell occupied by these Ag atoms (Vs in nm3); (v) calculate its packing fraction; (vi) calculate the mass of a fundamental unit cell muc in g); and (vii) the density (in g...
Metal x crystallizes in a face-centered cubic (close-packed) structure. The edge length of the unit cell...
Metal x crystallizes in a face-centered cubic (close-packed)
structure. The edge length of the unit cell was found by x-ray
diffraction to be 383.9 pm. The density of x is 20.95 . Calculate
the mass of an x atom, and use Avogadro’s number to calculate the
molar weight of
Metal X crystallizes in a face-centered cubic (close-packed) structure. The edge length of the unit cell was found by x-ray diffraction to be 383.9 pm. The density of X is 20.95...
1. Calculate the density of the magnesium unit cell. HCP has 6 atoms per unit cell...
1. Calculate the density of the magnesium unit cell. HCP has 6 atoms per unit cell for the full HCP structure. The primitive form of the HCP has 2 atoms/unit cell. At. Wt. 24.305g/mole, a 3.29A, c 5.21 A. 2. Calculate the density of the FCC nickel lattice with an interstitial hydrogen in the centered position of the unit cell. You may assume that there is no lattice dilation due to the presence of the hydrogen atom. a 3.524A, At.Wt....
Periclase, crystalline Mgo, has the same unit cell as NaCl. In this unit cell the Mg2+...
Periclase, crystalline Mgo, has the same unit cell as NaCl. In this unit cell the Mg2+ ions occupy all of the face-centered positions and 02-ions occupy all of the octahedral holes. Periclase has an edge length of 4.212 Å. A representation of the unit cell is shown below. Magnesium ions have a radius of 0.89 Å. Determine the ionic radius, in A, of 02-ions in periclase. 02- Mg2+ Periclase, crystalline Mgo, has the same unit cell as Naci. In this...
Strontium has density of 2.64 g/cm3 and crystallizes with the face-centered cubic unit cell. Calculate the...
Strontium has density of 2.64 g/cm3 and crystallizes with the face-centered cubic unit cell. Calculate the radius of a strontium atom in units of picometers. Enter your answer numerically, to three significant figures, and in terms of pm.
Solid silver adopts the fcc structure. (i) Determine the number of Ag atoms per fundamental unit cell (nuc;) determine the volume of the fundamental unit cell (Vuc in nm3); (ii) determine the radius of a single Ag atom (in nm); (iv) the volume (space) within the fundamental unit cell occupied by these Ag atoms (Vs in nm3); (v) calculate its packing fraction; (vi) calculate the mass of a fundamental unit cell muc in g); and (vii) the density (in g...
Metal x crystallizes in a face-centered cubic (close-packed)
structure. The edge length of the unit cell was found by x-ray
diffraction to be 383.9 pm. The density of x is 20.95 . Calculate
the mass of an x atom, and use Avogadro’s number to calculate the
molar weight of
Metal X crystallizes in a face-centered cubic (close-packed) structure. The edge length of the unit cell was found by x-ray diffraction to be 383.9 pm. The density of X is 20.95...
1. Calculate the density of the magnesium unit cell. HCP has 6 atoms per unit cell for the full HCP structure. The primitive form of the HCP has 2 atoms/unit cell. At. Wt. 24.305g/mole, a 3.29A, c 5.21 A. 2. Calculate the density of the FCC nickel lattice with an interstitial hydrogen in the centered position of the unit cell. You may assume that there is no lattice dilation due to the presence of the hydrogen atom. a 3.524A, At.Wt....
Periclase, crystalline Mgo, has the same unit cell as NaCl. In this unit cell the Mg2+ ions occupy all of the face-centered positions and 02-ions occupy all of the octahedral holes. Periclase has an edge length of 4.212 Å. A representation of the unit cell is shown below. Magnesium ions have a radius of 0.89 Å. Determine the ionic radius, in A, of 02-ions in periclase. 02- Mg2+ Periclase, crystalline Mgo, has the same unit cell as Naci. In this...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago