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
Yuliya22 [10]
3 years ago
8

The metal rhodium (Rh) has an FCC crystal structure. If the angle of diffraction for the (311) set of planes occurs at 36.12° (f

irst-order reflection) when monochromatic x-radiation having a wavelength of 0.0711 nm is used, compute the following:
(a) the interplanar spacing for this set of planes, and (b) the atomic radius for a rhodium atom.
Chemistry
1 answer:
irina1246 [14]3 years ago
7 0

Answer:

  • the interplanar spacing for this set of planes is 0.0603 nm
  • the atomic radius for a rhodium atom is 0.0707 nm

Explanation:

Part (a) the interplanar spacing for this set of planes

Applying Bragg's law

d = \frac{n \lambda}{2sin \theta}

where;

d is the distance between set of planes

λ is the wavelength of  monochromatic x-radiation = 0.0711 nm

n is the reaction order = 1

θ is the diffraction angle = 36.12°

d = \frac{1(0.0711)}{2*sin(36.12)} \\\\d = 0.0603 nm

Part (b) the atomic radius for a rhodium atom.

d = \frac{a}{\sqrt{3^2 +1^2+1^2}} \\\\0.0603 = \frac{a}{\sqrt{11}} \\\\a = 0.0603 *\sqrt{11} \\\\a = 0.19999 nm

Also, a = 2R√2

R = a/(2√2)

R = 0.19999/(2√2)

R = 0.0707 nm

You might be interested in
What volume of ammonia gas, measured at 547.9 mmHg and 27.6oC, is required to produce 8.98 g of ammonium sulfate according to th
Studentka2010 [4]

Answer:

4.65 L of NH₃ is required for the reaction

Explanation:

2NH₃(g)  +  H₂SO₄(aq)  → (NH₄)₂SO₄(s)

We determine the ammonium sulfate's moles that have been formed.

8.98 g . 1mol / 132.06 g = 0.068 moles

Now, we propose this rule of three:

1 mol of ammonium sulfate can be produced by 2 moles of ammonia

Therefore, 0.068 moles of salt were produced by (0.068 . 29) / 1 = 0.136 moles of NH₃. We apply the Ideal Gases Law, to determine the volume.

Firstly we do unit's conversions:

27.6°C +273 =  300.6 K

547.9 mmHg . 1 atm / 760 mmHg = 0.721 atm

V = ( n . R . T ) / P → (0.136 mol . 0.082 L.atm/mol.K . 300.6K) / 0.721 atm

V = 4.65 L

4 0
3 years ago
Read 2 more answers
The method of changing one or more chemical compounds
horsena [70]

Answer:

chemical process

Explanation:

4 0
3 years ago
Which of the following is a homogeneous mixture of two or more pure substances? Water alcohol coffee mercury
Murrr4er [49]

i think coffee

is the answer

8 0
3 years ago
Find the mass ratios and atomic ratios of the following compounds.
geniusboy [140]
I am typing this to get more answers for one of my tests good luck dawg
3 0
3 years ago
A scientist evaluates its livestock and determines which livestock it is
Rina8888 [55]

Any animals look for steangth mostly because the offspring can probobly onther trait is looks. The male will try to impess the female.

4 0
3 years ago
Other questions:
  • What is not a trace gas found in our atmosphere oxygen,argon,carbon dioxide or neon
    12·1 answer
  • Why do you think matter changes state when outside forces act upon it?
    5·2 answers
  • A solution was prepared by dissolving 31.0 g of kcl in 225 g of water. part a calculate the mass percent of kcl in the solution.
    11·1 answer
  • When you find a new source of information, why is it important to think for yourself about whether to use that source?
    11·1 answer
  • Which of the following terms refers to areas of gas on the suns surface that are cooler than the gases around them?
    14·2 answers
  • Name the valency and symbol of acidic radicals ​
    14·1 answer
  • Na Sa Bant HCL -> 50g Hao pt Soy​
    9·1 answer
  • In the outline of the Periodic Table below, some elements are shown as numbers.
    7·2 answers
  • What is the volume, in liters, of 0.250 moles of carbon monoxide at STP?
    7·1 answer
  • Using subject academic vocabulary (ex. Pretend you are teaching a friend about the differences between plant and animals cells.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!