The density of palladium (Pd) is 12.0 g/mL and the cell volume is 5.89 ✕ 10^−23 mL. Determine the number of atoms in the unit cell. (Because there cannot be a part of an atom in a unit cell, we must round
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Chemistry
The density of palladium (Pd) is 12.0 g/mL and the cell volume is 5.89 ✕ 10^−23 mL. Determine the number of atoms in the unit cell. (Because there cannot be a part of an atom in a unit cell, we must round the number of atoms to the nearest whole number.) 
chemistry
1)The element nickel has ccp packing with a facecentered cubic unit cell. The density of nickel is 8900 kg/m3 and the cell volume is 4.376 x 1023 cm3. Calculate the value of Avogadro's number to three significant figures based on these data. (Note: the value may differ from ... 
Chemistry
The density of gold is 1.93E4 kg/m3 and the cell volume is 6.78E26 L. Determine the number of atoms in the unit cell. Note: the number of atoms in a unit cell is a whole number. For the purposes of this calculation, enter your answer to 3 significant figures. 
chemistry
The density of platinum is 21500 kg/m3 and the cell volume is 6.04 x 1026 L. Determine the number of atoms in the unit cell. Note: the number of atoms in a unit cell is a whole number. 
Chemistry
The density of cesium is 1870 kg/m3 and the cell volume is 2.23 x 1022 mL. Determine the number of atoms in the unit cell. Note: the number of atoms in a unit cell is a whole number. 
Chemistry
The density of iridium is 22400 kg/m3 and the cell volume is 5.66 x 1023 cm3. Determine the number of atoms in the unit cell. Note: the number of atoms in a unit cell is a whole number. The molar mass of iridium is 192.22. I know that this can either be a bcc, cap, or hcp ... 
Chem
Based on the number of atoms per unit cell and the mass of the atom, the mass of the unit cell can be calculated. The density of the unit cell and the material as a whole can be determined from the mass and the volume of the unit cell as. D= M/V The usual units of density are ... 
Chemistry
The element palladium has ccp packing with a facecentered cubic unit cell. The density of Pd is 12 g/cm3. Calculate the volume (L) of the unit cell of Pd. 
chemistry
This problem is from my chemistry book and I am having a little trouble with the intermediary steps: Barium metal crystallizes in a body centered cubic lattice (atoms at lattice points only) The unit cell edge length is 502 pm, and the density of the metal if 3.5g/cm^3. (... 
engineering
Sketch one face of a simple cubic unit cell of side a for the case when the maximum fraction of the lattice in volume is filled with atoms, and each atom is approximated by a hard sphere. (ii) What is the radius of each atom in terms of a? (iii) What is the volume of each atom... 
chemistry
Sketch one face of a simple cubic unit cell of side a for the case when the maximum fraction of the lattice in volume is filled with atoms, and each atom is approximated by a hard sphere. (ii) What is the radius of each atom in terms of a? (iii) What is the volume of each atom... 
Chemistry
The element Sc has hcp packing with a hexagonal unit cell. The density of Sc is 3000 kg/m3. Calculate the volume (L) of the unit cell of Sc. Sc Molar Mass =44.956 It is hcp, so it has 2 atoms/unit cell. I would appreciate any help with this problem! Thank you in advance! 
Science: Chemistry
1. The element gold, Au, has a facecentered cubic structure. (Density  19.3 g/cm^3) (a) What are the # of gold atoms in 1 unit cell? (b) What are the # of unit cells in 1 mol? (c) What is the volume of 1 mol gold unit cells? (d) What is the volume of 1 unit cell? (e) what is... 
Chemistry
1. The eleent gold, Au, has a facecentered cubic structure. (Density  19.3 g/cm^3) (a) What are the # of gold atoms in 1 unit cell? (b) What are the # of unit cells in 1 mol? (c) What is the volume of 1 mol gold unit cells? (d) What is the volume of 1 unit cell? (e) what is ... 
Chemistry
Boron Phosphide, BP, is a semiconductor, and a hard, abrasion resistant material. It is made by reacting Boron tribromide and phosphorus tribromide in a hydrogen atmosphere at high temperature (>750 degrees C) (a) Write a Balanced chemical equation for the synthesis of BP (... 
chemistry
The unit cell of palladiu m is a cube that is 389. 03 pm on a side. There are 4 Pd ato ms in the unit cell. Calculate the density of palladium in grams per cubic centimeter. 
chemistry
I have a unit cube question to which the answer is given that I'm trying to figure out. The question is: If under conditions of high pressure & temperature, the crystalline structure rearranges to form a facecentered cubic unit cell, what is the new density of the substance? ... 
science
Gallium crystallizes in a simple cubic lattice. Sketch the unit cell. Determine the number of atoms present in the unit cell. The density of gallium is 5.904g/cm^3. Determine a value for the atomic (metallic) radius of gallium. 
Chemistry
The element rubidium has bcc packing with a bodycentered cubic unit cell. The density of Rb is 1530 kg/m3. Calculate the volume (L) of the unit cell of rubidium. Molar mass of Rb=85.468. Since it is bcc, it would have 2 atoms/unit cell. Can you please help me solve this? ... 
Unit Cells
Copper has a unit cell volume of (47.453 A^3) and a face centered unit cell. How would I go about finding the volume of atoms within the unit cell? Would you use Avogadro's # somehow? 
CHEM help needed
how do i find the Volume of Atoms within Unit Cell in(Å^3)? I think it has something to do with avogadros number but i do not know exactly...so far i know that the volume of the unit cell is 47.045881 Å^3. PLEASE HELP 
chemistry help!
Hello, I am having problem with two lab questions and was wondering if someone can help! 1. Calculate the percentage of the empty space in a facecentered cubic lattice, and show that it does not depend on the edge length of the unit cell ot on the size of the atoms in the ... 
chemistry
Hello, I am having problem with two lab questions and was wondering if someone can help! 1. Calculate the percentage of the empty space in a facecentered cubic lattice, and show that it does not depend on the edge length of the unit cell ot on the size of the atoms in the ... 
Chemistry
Crystal of Sodium form Cubic unit cell with edge length 430pm.Find the no.of atoms present per unit cell and also the type of unit cell. P.S. No radius or density is given so its a lil bit tough dan the rest... Plz Help ASAP !! 
Chemistry
1.The density of solid Fe is 7.87 g/cm3. What volume per atom of Fe? 2.As a solid Fe adopts a body centered cubic unit cell. What is the volume of a unit cell of this metal? 3.What is the edge length of a unit cell of Fe? 
Chemistry
The density of solid W is 19.3 g/cm3. How many atoms are present per cubic centimeter of W? As a solid, W adopts a bodycentered cubic unit cell. How many unit cells are present per cubic centimeter of W? What is the volume of a unit cell of this metal? What is the edge length... 
General Chemistry
PLEASE ANSWER VERY SOON I AM STUCK! Crystalline silicon has a cubic structure. The unit cell edge length is 543 pm. The density of the solid is 2.33 g/cm3. Calculate the number of Si atoms in one unit cell. 
CHEM****
Initial info: The atoms of crystalline solid pack together into a threedimensional array of many small repeating units called unit cells. The simplest of the unit cells are those that have cubic symmetry, with atoms positioned at the corners of a cube. Atoms can also be found... 
math
what is the number of each atom in the unit cell of a BCC cystalline structure unit cell. I know its 2 atoms=8/8 +1 Calculate what % of each atom is contained within the unit cell? How do I do this 
chemistry
how do i calculate the volume of a unit cell and volume of atoms within a unit cell for FCC and BCC 
science
how do I calculate volume of atoms in unit cell and volume of unit cell for plane triangular lattice? 
Chemistry
An element has bcc packing with a bodycentered cubic unit cell. Its density is 19300 kg/m3 and the unit cell volume is 3.17 x 1026 L. Calculate the molar mass (g/mol) of the element to three significant figures. The element rubidium has bcc packing with a bodycentered cubic... 
chemistry
The edge of a bodycentered cubic unit cell (which contains two atoms per unit cell) of an element Y was found to be 3.16x10^8cm.The density of the metalis 19.35g*cm^3. What is the approximate molar mass of Y? 
chemistry
The edge of a bodycenteredcubic unit cell ( which contains two atoms per unit cell) of an element Y was found to be 2.16x10^8cm. The density of the metal is 19.35g*cm^3. What is the approximate molar mass of Y? 
Chemistry
The crystal structure of lithium sulfide (Li2S) is pictured here. The length of the unit cell is 5.88 x 10^2. For this structure, determine: a)the coordination number of Li and S b) the number of formula nunits in the unit cell c) the density of Li2S 
Chemistry
A mineral that contains iron and sulfur has the cubic unit cell pictured below. What is the empirical formula for this mineral? •Fe atoms are the smaller spheres; one on each corner and one on each face of the unit cell •S atoms are the eight larger spheres; every S atom ... 
Chemistry
An element crystallizes in a body centered cubic unit cell. The radius of this element is 2.20A , and the density is .991 g/cm^3. how many moles of atoms are within one unit cell? 
chemistry
The element K has bcc packing with a bodycentered cubic unit cell. The density of K is 0.862 g/mL. Calculate the volume (L) of the unit cell of K. 
chemistry
The element Rb has bcc packing with a bodycentered cubic unit cell. The density of Rb is 1.532 g/cm3 and the cell volume is 1.852 x 1022 mL. Calculate the value of Avogadro's number to three significant figures based on these data. 
chemistry
The element Xe has ccp packing with a facecentered cubic unit cell. The density of xenon is 3.783 g/mL and the cell volume is 2.306 x 1022 mL. Calculate the value of Avogadro's number to three significant figures based on these data. 
CHEM
Info: The atoms of crystalline solid pack together into a threedimensional array of many small repeating units called unit cells. The simplest of the unit cells are those that have cubic symmetry, with atoms positioned at the corners of a cube. Atoms can also be found in the ... 
chemistry
The element strontium has ccp packing with a facecentered cubic unit cell. The volume of the unit cell is 2.25 x 1025 L. Calculate the density (g/mL) of the element. 
chemistry
The element lithium has bcc packing with a bodycentered cubic unit cell. The volume of the unit cell is 4.32 x 1026 L. Calculate the density (g/cm3) of the element. 
Chemistry
The element niobium has bcc packing with a bodycentered cubic unit cell. The volume of the unit cell is 3.59 x 1026 L. Calculate the density (g/cm3) of the element 
Chemistry
An element has hcp packing with a hexagonal unit cell. the volume of the unit cell is 5.71E26 L. Calculate the density (kg/m3) of the element. 
Chemistry
An element has hcp packing with a hexagonal unit cell. Its density is 4.5 g/cm3 and the unit cell volume is 3.53 x 1023 mL. Calculate the molar mass (g/mol) of the element to three significant figures. 
chemistry
An element has hcp packing with a hexagonal unit cell. Its density is 21000 kg/m3 and the unit cell volume is 2.94 x 1023 mL. Calculate the molar mass (g/mol) of the element to three significant figures. 
Chemistry
An element has ccp packing with a facecentered cubic unit cell. Its density is 8.92 g/cm3 and the unit cell volume is 4.72 x 1026 L. Calculate the molar mass (g/mol) of the element to three significant figures. 
Chemistry
An element has ccp packing with a facecentered cubic unit cell. Its density is 8.92 g/cm3 and the unit cell volume is 4.72 x 1026 L. Calculate the molar mass (g/mol) of the element to three significant figures. 
chemistry
An element has ccp packing with a facecentered cubic unit cell. Its density is 1770 kg/m3 and the unit cell volume is 1.50 x 1028 m3. Calculate the molar mass (g/mol) of the element to three significant figures. 
chemistry
The molar volume of a certain form of solid lead is 18cm3/mol. Assuming cubic closest packed structure, determine the number of Pb atoms per unit cell. 
Chemistry
An element has ccp packing with a facecentered cubic unit cell. Its density is 12400 kg/m3 and the unit cell volume is 5.50 x 1029 m3. Calculate the molar mass (g/mol) of the element to three significant figures. Please explain how you come to the answer. 
Chemistry
The element Sc has hcp packing with a hexagonal unit cell. The density of scandium is 3.00E3 kg/m3 and the cell volume is 5.00E26 L. Calculate the value of Avogadro's number to 3 significant figures based on these data. Note: the value may differ from the listed value. 
Chemistry
Answer the following for a face centered unit cell. how do i find: # atoms / 1 unit cell coordination # 
Inorganic Chemistry
The atoms in barium metal are arranged in a body centered cubic unit cell. Calculate the radius of a barium atom in A if the density of barium is 3.50g/cm3. The atomic weight of barium is 137.34. The atoms in barium metal are arranged in a body centered cubic unit cell. ... 
chemistry
The element platinum has ccp packing with a facecentered cubic unit cell. The density of platinum is 21.5 g/cm3. Calculate the volume (cm3) of the unit cell of platinum. 
Chemistry AP HELP!
Tausonite, a mineral composed of Sr, O, and Ti, has the cubic unit cell and the chemical formula is SrTiO3..... Ti is coordinated by 6 O atoms, because the Ti is located at the center of the unit cell. To see the full coordination environment of the other ions, we have to ... 
Chemistry
Calculate the radius of a vanadium atom, given that V has a BCC crystal structure, a density of 5.96 g/cm3, and an atomic weight of 50.9 g/mol. I used this equation: density = (2)*(atomic weight) / (volume of unit cell)*(Avagodro's #) rearranged to find the volume of the unit ... 
Chemistry
Calculate the radius of a vanadium atom, given that V has a BCC crystal structure, a density of 5.96 g/cm3, and an atomic weight of 50.9 g/mol. I used this equation: density = (2)*(atomic weight) / (volume of unit cell)*(Avagodro's #) rearranged to find the volume of the unit ... 
chemistry
this is a wiley plus problem and there is no reading lesson with this section so im not sure how to approach this question: The element iridium has ccp packing with a facecentered cubic unit cell. The density of Ir is 22400 kg/m3. Calculate the volume (cm3) of the unit cell ... 
physics
Although these quantities vary from one type of cell to another, a cell can be 2.10 ìm in diameter with a cell wall 50.3nm thick. If the density (mass divided by volume) of the wall material is the same as that of pure water, what is the mass (in mg) of the cell wall, ... 
Biology, Cell Division
With each cell division , the chromosomes are divided between 2 daughter cells, yet the number of chromosomes in each cell does not change. What process ensures that the normal number of chromosomes is restored after each cell division? During which part of the cell cycle does... 
chemistry
1)The element nickel has ccp packing with a facecentered cubic unit cell. The density of nickel is 8900 kg/m3 and the cell volume is 4.376 x 1023 cm3. Calculate the value of Avogadro's number to three significant figures based on these data. (Note: the value may differ from ... 
chem
An element has ccp packing with a facecentered cubic unit cell. Its density is 1540 kg/m3 and the unit cell volume is 1.73 x 1022 cm3. Calculate the molar mass (g/mol) of the element to three significant figures. CCP: cubic close pack 
chemistry
Answer the following for a body centered unit cell. type of packing type of holes # atoms / 1 unit cell coordination # 
AP Chemistry
A voltaic cell is constructed that uses the following halfcell reactions. Cu+(aq) + e Cu(s) I2(s) + 2 e 2 I (aq) The cell is operated at 298 K with [Cu+ ] = 2.3 M and [I  ] = 3.3 M. (a) Determine E for the cell at these concentrations. (b) If [Cu+ ] were equal to 1.0 M, ... 
AP Chemistry
A voltaic cell is constructed that uses the following halfcell reactions. Cu+(aq) + e Cu(s) I2(s) + 2 e 2 I (aq) The cell is operated at 298 K with [Cu+ ] = 2.3 M and [I  ] = 3.3 M. (a) Determine E for the cell at these concentrations. (b) If [Cu+ ] were equal to 1.0 M, ... 
Chemistry
What portion of the volume of each atom or ion on the face of a unit cell is actually within the unit cell 1/2 1/4 3/4 all of it none of it 
Chemistry
The radius of a single atom of a generic element X is 199 picometers (pm) and a crystal of X has a unit cell that is facecentered cubic. Calculate the volume of the unit cell. 
AP Chemistry
Titanium metal has a bodycentered cubic unit cell. The density of Titanium is 4.50 g/cm^3. Calculate the edge length of the unit cell and a value for the atomic radius of titanium. Ok, I know how to find the density using the atomic radius, but I'm having trouble working ... 
chemistry
for NaTl, is the unit cell of it based on the repetition of body centered cubic and the holes in this unit cell are octahedral? how many of each of the 2 cubes drawn for NaTl are required its unit cell? is it 8? 
college chem
metallic iron crystallizes in a cubic lattice. The unit cell edge length is 287 pm. The density of iron is 7.87 g/cm^3. Calculate the mass (in grams) of one unit cell 
chemistry
Gallium crystallizes in a primitive cubic unit cell. The length of an edge of this cube is 362 pm. What is the radius of a gallium atom? The facecentered gold crystal has an edge length of 407 pm. Based on the unit cell, calculate the density of gold. Type of atom Fraction in... 
Chemistry
The crystal structure of lithium sulfide (Li2S) is pictured here. The length of the unit cell is 5.88 x 10^2. For this structure, determine: (I could not paste the actual picture from the assignment here, but if you go to Google Image and type in "crystal structure of lithium ... 
chem
The radius of a single atom of generic element X is 197 picometer(pm) and crystal of X has a unit cell that is face centered cubic calc the volume of the unit cell. Please help and show all work 
chemistry
 What fraction of an E coli cell is occupied by its DNA? How would I find the fraction? If I knew the volume of an E coli cell, would I divide that by the volume of DNA in an E coli cell?  A human cell is typically spherical with a diameter of 20 micrometers. Calculate the ... 
Chemistry
Element X has a facecentered cubic unit cell structure. If the density of the element is measured to be 12.4 g/cm^3, what is the atomic radius of X? units are in pm (picometers) MM: 102.9055 g/mol I have done this 4 different times and came up with the same answer  381pm, ... 
Chemistry
The number of Pb atoms per unit cell 
CHemistry....Please help
How would i calculate the density of Li2S in grams per cubic centimeter? I have to use the equation : density= mass/ volume: But i don't know how to find out the volume using the edge length of the unit cell which is 5.88* 10^2 pm. 
AP Biology
A biologist measured the amount of DNA in several single diploid cells taken from a culture. He knew that these cells could divide mitotically, but not meiotically. His data is shown below: Cell Number and DNA content in micrograms: Cell 1 (11.1 micrograms) Cell 2 (5.4 ... 
chemistry
An element has ccp packing with a facecentered cubic unit cell. Its densiry is 2.70E3 kg/m3 and the unit cell volume is 6.64E29 m3. Calculate the molar mass (g/mol) of the element to 3 significant figures. 
chemistry
An element has ccp packing with a facecentered cubic unit cell. Its densiry is 2.70E3 kg/m3 and the unit cell volume is 6.64E29 m3. Calculate the molar mass (g/mol) of the element to 3 significant figures. 
CHemistry....Please help...DrBobb
I posted this up yesterday: I have to use the equation : density= mass/ volume: But i don't know how to find out the volume using the edge length of the unit cell which is 5.88* 10^2 pm. CHemistry....Please help  DrBob222, Sunday, January 25, 2009 at 10:41pm If the edge ... 
AP CHEMISTRY
A voltaic cell is constructed that uses the following halfcell reactions. Cu+(aq) + e− > Cu(s) I2(s) + 2 e− > 2 I−(aq) The cell is operated at 298 K with [Cu+ ] = 2.7 M and [I− ] = 2.7 M. (a) Determine E for the cell at these concentrations. (b... 
AP CHEMISTRY
A voltaic cell is constructed that uses the following halfcell reactions. Cu+(aq) + e− > Cu(s) I2(s) + 2 e− > 2 I−(aq) The cell is operated at 298 K with [Cu+ ] = 2.7 M and [I− ] = 2.7 M. (a) Determine E for the cell at these concentrations. (b... 
medicine
What is the main difference between a stem cell and a cancer cell? A. A stem cell grows at a faster rate than a cancer cell B. A stem cell obeys signals to stop growth, but a cancer cell doesn't C. A stem cell is usually external; a cancer cell is usually internal D. A stem ... 
Physics
One gram of palladium has 5.66×10^21 atoms, and each palladium atom has 46 electrons. How many electrons are contained in 7.00g of palladium? The elemental charge is1.6×10^−19C. Answer in units of electrons. The answer is 1.82252x10^24 for Part A. i need help with part... 
physics
One gram of palladium has 5.66×10^21 atoms, and each palladium atom has 46 electrons. How many electrons are contained in 7.00g of palladium? The elemental charge is1.6×10^−19C. Answer in units of electrons. The answer is 1.82252x10^24 for Part A. i need help with part... 
Chemistry
The unit cell of KCl is 6.31 Å on an edge. Find the density of KCl if there is 4 atoms of each element. 
Biology
I need help with a crossword and I cant figure out what the words are too these clues: Possible opening found in the cell membrane substance which makes up cell walls granular material in the nucleus that thickens to become chromosomes the endoplasmic reticulum is a network of... 
AP BIO
1. A biologist measured the amount of DNA in several single diploid cells taken from a culture. He knew that these cells could divide mitotically, but not meiotically. His data is shown below: Cell Number and DNA content in micrograms: Cell 1 (11.1 micrograms) Cell 2 (5.4 ... 
Bio
A biologist measured the amount of DNA in several single diploid cells taken from a culture. He knew that these cells could divide mitotically, but not meiotically. His data is shown below: Cell Number and DNA content in micrograms: Cell 1 (11.1 micrograms) Cell 2 (5.4 ... 
Chem
Pure gold adopts a facecentered cubic crystal structure. It also has a density of 19.30g/mL. What is the edge length of gold's unit cell? What is the atomic radius of gold? I understand how to do this problem the other way: when you have the unit cell and are looking for the ... 
Chem: primitive cubic packing
Answer the following for a primitive cubic unit cell. type of packing =? type of holes =? # atoms / 1 unit cell = 1 coordination # =6 I got the last two, but can't figure out the first 2 Any help would be appreciated 
Chemistry
An element has ccp packing with facecentered cubic unit cell. Its density is 3.78 g/cm^3 and the unit cell volume is 2.31 x 10^25 L. Calculate the molar mass (g/mol) of the element to 3 sig figs. the answer is 131 g/mol i first changed 2.31 x 10^25 L to 2.31 x 10^22 mL and... 
Science Cells
2 adjectives to describe each cell nerve cell muscle cell bone cell and blood cell 
physics
REALLY NEED HELP WITH THIS PLEASE. One gram of palladium has 5.66×10^21 atoms, and each palladium atom has 46 electrons. How many electrons are contained in 7.00g of palladium? The elemental charge is1.6×10^−19C. Answer in units of electrons. The answer is 1.82252x10^... 
college  chemistry
Hi, I was wondering if anyone could provide me the necessary information to solve this problem. For the following elements: CdSe CsI Li2O KBr NaCl ZnS(I) I've been asked to find the Unit Cell of Larger ion Type of Hole where Smaller Ions are found # of Cations per unit cell... 
college  chemistry
Hi, I was wondering if anyone could provide me the necessary information to solve this problem. For the following elements: CdSe CsI Li2O KBr NaCl ZnS(I) I've been asked to find the Unit Cell of Larger ion Type of Hole where Smaller Ions are found # of Cations per unit cell... 
chemistry
Find the unit cell (simple, bcc, fcc), type of holes where the smaller ions are found (tetrahedral, octrahedral, cubic), and number of cations and anions per unit cell for the following compounds: CdSe CsI Li2O KBr NaCl ZnS(I)