Gold forms a substitutional solid solution with silver. Compute the number of gold atoms per cubic...
Gold forms a substitutional solid solution with silver. Compute the number of gold atoms per cubic centimeter for a silver-gold alloy that contains 48 wt% Au and 52 wt% Ag. The densities of pure gold and silver are 19.32 and 10.49 g/cm3
Homework Answers
density of the resulting substance = 0.48*19.32 + 0.52*10.49
=14.73 g/cm^3
now, mass of 1 cm^3 os the alloy = 14.73 grams
so mass of gold in it = 0.48*14.73
=7.0704 grams
molar mass of Au = 197 g/moles
so number of moles = 7.0704/197
so number of atoms = 6.023*10^23*(7.0704/197)
=2.16*10^22 atoms/cm^3
Add Answer to:
Gold forms a substitutional solid solution with silver. Compute
the number of gold atoms per cubic...
Niobium forms a substitutional solid solution with vanadium. Compute the weight percent of niobium that must...
Niobium forms a substitutional solid solution with vanadium. Compute the weight percent of niobium that must be added to vanadium to yield an alloy that contains 1.55 times 10%22 Nb atoms per cubic centimeter. The densities of pure Nb and V are 8.57 and 6.10 g/cm^3, respectively. Gold forms a substitutional solid solution with silver. Compute the number of gold atoms per cubic centimeter for a silver-gold alloy that contains 10 wt% Au and 90 wt% Ag. The densities of...
Germanium forms a substitutional solid solution with silicon. Compute the weight percent of germanium that must...
Germanium forms a substitutional solid solution with silicon. Compute the weight percent of germanium that must be added to silicon to yield an alloy that contains 2.53 × 1021 Ge atoms per cubic centimeter. The densities of pure Ge and Si are 5.32 and 2.33 g/cm3, respectively. The atomic weights for germanium and silicon are 72.64 and 28.09 g/mol, respectively
1. Compute the percent ionic character of the interatomic bonds for each of the following compounds:...
1. Compute the percent ionic character of the interatomic bonds for each of the following compounds: TiO2, ZnTe, Csci, InSb, and MgCl2. Calculate the number of vacancies per cubic meter in iron at 850°C. The energy for vacancy formation is 1.08 eV/atom. The density and atomic weight for Fe are 7.65 g/cm3 and 55.85 g/mol, respectively 3. Molybdenum forms a substitutional solid solution with tungsten. Compute the weight percent of molybdenum that must be added to tungsten to yield an...
Silver and gold atoms mix together randomly on the same lattice to form a homogeneous alloy....
Silver and gold atoms mix together randomly on the same lattice to form a homogeneous alloy. If you have 30 g of gold mixed with 50 g of silver, what are the mole fractions of Au and Ag? What is the molar entropy of mixing? What is the total entropy of mixing? Assuming an ideal solution, what is ΔGmix at T = 750 °C?
The density of solid FeFe is 7.87 g/cm3.7.87 g/cm3. How many atoms are present per cubic...
The density of solid FeFe is 7.87 g/cm3.7.87 g/cm3. How many atoms are present per cubic centimeter (cm3)(cm3) of Fe?Fe? FeFe atoms: atoms/cm3atoms/cm3 As a solid, FeFe adopts a body‑centered cubic unit cell. How many unit cells are present per cubic centimeter (cm3)(cm3) of Fe?Fe? unit cells: unit cells/cm3unit cells/cm3 What is the volume of a unit cell of this metal? volume: cm3cm3 What is the edge length of a unit cell of Fe?Fe? edge length: cm
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...
Name: MCEG-2023 Engineering Materlals June 14 2019 QUIZ Take home quiz, due on Monday, June 17...
Name: MCEG-2023 Engineering Materlals June 14 2019 QUIZ Take home quiz, due on Monday, June 17 Q1. Calculate the number of vacancies per cubic meter in gold (Au) at 900 C. The energy for vacancy formation is 0.98 ev/atom. Furthermore, the density and atomic weight for Au are 18.63 g/cm3 (at 900 C) and 196.9 g/mol, respectively. Q2. Atomic radius, crystal structure, electronegativity, and the most common valence are given in the following table for several elements; for those that...
--Given Values-- Atomic Radius (nm) = 0.116 FCC Metal = Gold BCC Metal: = Sodium Temperature...
--Given Values-- Atomic Radius (nm) = 0.116 FCC Metal = Gold BCC Metal: = Sodium Temperature ( C ) = 1017 Metal A = Tin Equilibrium Number of Vacancies (m-3) = 6.02E+23 Temperature for Metal A = 369 Metal B = Gallium 1) If the atomic radius of a metal is the value shown above and it has the face-centered cubic crystal structure, calculate the volume of its unit cell in nm3? Write your answers in Engineering Notation. ...
When electricity (the flow of electrons) is passed through a solution, it causes an oxidation-reduction (redox)...
When electricity (the flow of electrons) is passed through a solution, it causes an oxidation-reduction (redox) reaction to occur. If the solution contains a metal cation such as Ag+, the flow of electrons will reduce the silver ion, causing solid silver to plate onto the electrode. The amount of metal plated depends on the number of electrons passed. The total charge of a mole of electrons is 96,485 coulombs (C) and 1 ampere (A) = 1 coulomb/second (C/s) Part A...
ID Problems 46) A piece of silver (Ag) metal weighing 194.3 g is placed in a...
ID Problems 46) A piece of silver (Ag) metal weighing 194.3 g is placed in a graduated cylinder containing 242.0 mL of water. The volume of water now reads 260.5 mL. From these data calculate the density of silver 47) The following procedure was used to determine the volume of a flask. The flask was weighed dry and then filled with water. If the masses of the empty flask and filled flask were 56.12 g and 87.39 g, respectively, and...
Niobium forms a substitutional solid solution with vanadium. Compute the weight percent of niobium that must be added to vanadium to yield an alloy that contains 1.55 times 10%22 Nb atoms per cubic centimeter. The densities of pure Nb and V are 8.57 and 6.10 g/cm^3, respectively. Gold forms a substitutional solid solution with silver. Compute the number of gold atoms per cubic centimeter for a silver-gold alloy that contains 10 wt% Au and 90 wt% Ag. The densities of...
1. Compute the percent ionic character of the interatomic bonds for each of the following compounds: TiO2, ZnTe, Csci, InSb, and MgCl2. Calculate the number of vacancies per cubic meter in iron at 850°C. The energy for vacancy formation is 1.08 eV/atom. The density and atomic weight for Fe are 7.65 g/cm3 and 55.85 g/mol, respectively 3. Molybdenum forms a substitutional solid solution with tungsten. Compute the weight percent of molybdenum that must be added to tungsten to yield an...
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...
Name: MCEG-2023 Engineering Materlals June 14 2019 QUIZ Take home quiz, due on Monday, June 17 Q1. Calculate the number of vacancies per cubic meter in gold (Au) at 900 C. The energy for vacancy formation is 0.98 ev/atom. Furthermore, the density and atomic weight for Au are 18.63 g/cm3 (at 900 C) and 196.9 g/mol, respectively. Q2. Atomic radius, crystal structure, electronegativity, and the most common valence are given in the following table for several elements; for those that...
When electricity (the flow of electrons) is passed through a solution, it causes an oxidation-reduction (redox) reaction to occur. If the solution contains a metal cation such as Ag+, the flow of electrons will reduce the silver ion, causing solid silver to plate onto the electrode. The amount of metal plated depends on the number of electrons passed. The total charge of a mole of electrons is 96,485 coulombs (C) and 1 ampere (A) = 1 coulomb/second (C/s) Part A...
ID Problems 46) A piece of silver (Ag) metal weighing 194.3 g is placed in a graduated cylinder containing 242.0 mL of water. The volume of water now reads 260.5 mL. From these data calculate the density of silver 47) The following procedure was used to determine the volume of a flask. The flask was weighed dry and then filled with water. If the masses of the empty flask and filled flask were 56.12 g and 87.39 g, respectively, and...
Most questions answered within 3 hours.
-
Which Special Journal would the following transaction be
journalized in?
Sold merchandise on account to Customer...
asked 5 minutes ago -
Assuming 100% dissociation, calculate the freezing point (?fTf)
and boiling point (?bTb) of 1.45 ? K3PO4(aq)1.45...
asked 8 minutes ago -
An inflated helium balloon with a volume of 0.35L at
sea level (1.0 atm) was allowed...
asked 10 minutes ago -
Python 3.0 Please
Write a function that takes, as arguments, a binary string, a
list of...
asked 37 minutes ago -
(a) Calculate the momentum of a 2150 kg elephant charging a
hunter at a speed of...
asked 25 minutes ago -
all the following is an example of a fixed cost except: any cost
that changes in...
asked 27 minutes ago -
Briefly describe the changes in pupil diameter that occur with
changes in light intensity or distance...
asked 27 minutes ago -
A small sample from a vial of phenol melts at 39-40 °C. A larger
sample from...
asked 29 minutes ago -
Draw a δ-lysine amino acid and label all the carbons (alpha,
beta, gamma, etc.)
asked 42 minutes ago -
A uniform thin rod of length 0.97 m and mass 2.2 kg lies in a
horizontal...
asked 35 minutes ago -
A 110 kg horizontal beam is supported at each end. A 340 kg
piano rests at...
asked 36 minutes ago -
Case 5: World Food Programme: A Quarter a Day Keeps the
Hunger Away
Case Summary: Established...
asked 42 minutes ago