1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
harkovskaia [24]
4 years ago
15

The Molybdenum with an atomic radius 0.1363 nm and atomic weight 95.95 has a BCC unit cell structure. Calculate its theoretical

density (g/cm^3).
Engineering
1 answer:
Nookie1986 [14]4 years ago
5 0

Solution:

Given :

atomic radius, r = 0.1363nm = 0.1363×10⁻⁹m

atomic wieght, M = 95.96

Cell structure is BCC (Body Centred Cubic)

For BCC, we know that no. of atoms per unit cell, z = 2

and atomic radius, r =\frac{a\sqrt{3} }{4}

so, a = \frac{4r}{\sqrt{3}}

m = mass of each atom in a unit cell

mass of an atom = \frac{M}{N_{A} },

where, N_{A} is Avagadro Number = 6.02×10^{23}

volume of unit cell = a^{3}

density, ρ = \frac{mass of unit cell}{volume of unit cell}

density, ρ = \frac{z\times M}{a^{3}\times N_{A}}

ρ = \frac{2\times 95.95}{(\frac{4\times 0.1363\times 10^{-9}}{\sqrt{3}})^{3}\times (6.23\times 10^{23})}

ρ = 10.215gm/cm^{3}

You might be interested in
Write definitions for the following two functions:______
lawyer [7]

Answer:

<em>Written in Python</em>

def SumN(n):

     total = 0

     for i in range(1,n+1):

           total = total + i

     print("Total: ",total)

def SumNCubes(n):

     total = 0

     for i in range(1,n+1):

           total = total + i**3

     print("Cube: ",total)

n = int(input("User Input: "))

if n > 0:

     SumN(n)

     SumNCubes(n)

Explanation:

The SumN function is defined here

def SumN(n):

This line initializes the total to 0

     total = 0

The following iteration compute the required sum

<em>      for i in range(1,n+1): </em>

<em>            total = total + i </em>

This line outputs the calculated sum

     print("Total: ",total)

The SumNCubes function is defined here

def SumNCubes(n):

This line initializes the total to 0

     total = 0

The following iteration compute the required sum of cubes

<em>      for i in range(1,n+1): </em>

<em>            total = total + i**3 </em>

This line outputs the calculated sum of cubes

     print("Cube: ",total)

The main starts here; The first line prompts user for input

n = int(input("User Input: "))

The next line checks if input is greater than 0; If yes, the two defined functions are called

if n > 0:

     SumN(n)

     SumNCubes(n)

6 0
3 years ago
An organization is struggling to differentiate threats from normal traffic and access to systems. A security engineer has been a
AnnZ [28]

Answer:

Web application Firewall (WAF)

Explanation:

The Web application Firewall (WAF) will be recommended. This will enormously help any organisation that is having a struggle of differentiating threats from normal traffic and access to systems.

WAF is also going to It aggregate data and provide metrics that will assist in identifying malicious actors. Another vital function of WAF will be to block unwanted web traffic from accessing your site. It will protect against hacks, brute force attacks, DDoS attacks, cross-site scripting, SQL injection, and zero-day exploits.

8 0
4 years ago
Nbcghjjfujymujgtfutyduyffuoyffff7t
telo118 [61]

Explanation:

dbdhsndvhsbzbxbxjsnd

8 0
3 years ago
I will definitely rate 5 stars/brainliest!!! HELP PLEASE!!! State University must purchase 1,100 computers from three vendors. V
romanna [79]
Why 1+12+ Y3 < 1100
Says the state of university Need to purchase 1100 computers in total, we have the following answer on the way top
3 0
3 years ago
As temperature decreases a batteries availability power what
SSSSS [86.1K]
The answer is increases because when something like that decreases it’s always decreasing that probly makes no sense Imao but it’s increases
7 0
3 years ago
Other questions:
  • A treated aluminum plate is irradiated with G-1000 Wm2 while at a temperature of 400 K The plate is treated with a surface coati
    5·1 answer
  • Diesel engines do not use spark plugs to ignite the fuel-air mixture. Instead, they rely on the compression stroke to raise the
    12·1 answer
  • An ideal substance obeys the relation pV=100 where V is in ft^3 and p is in Psia. Evaluate the reversible non- flow work done on
    10·1 answer
  • Tell me a riddle and whoevers i like best gets brainliest
    6·1 answer
  • Assume there exists some hypothetical metal that exhibits ferromagnetic behavior and that has (1) a simple cubic crystal structu
    6·1 answer
  • With the aid of a labbled diagram describe the operation of a core type single phase transformer​
    13·1 answer
  • Why are funeral home adding dining facilities to the business
    14·1 answer
  • 1. Static holding is when you hold the same posture for long periods of time.
    11·1 answer
  • Traveling a average speed at 55mph how many miles will you travel in9 hours
    11·1 answer
  • A continuous fiber-reinforced composite is to be produced by dispersing 60 vol% carbon fibers in a polycarbonate matrix. if the
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!