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
miv72 [106K]
3 years ago
9

A small portion of a crystal lattice is sketched below. What is the name of the unit cell of this lattice? Your answer must be a

word, a very short phrase, or a standard abbreviation. Spelling counts!

Chemistry
1 answer:
Nikolay [14]3 years ago
7 0

This is an incomplete question, the given sketch is shown below.

Answer : The name of given unit cell is, FCC (face-centered cubic unit cell)

Explanation :

Unit cell : It is defined as the smallest 3-dimensional portion of a complete space lattice which when repeated over the and again in different directions produces the complete space lattice.

There are three types of unit cell.

  • SCC (simple-centered cubic unit cell)
  • BCC (body-centered cubic unit cell)
  • FCC (face-centered cubic unit cell)

In SCC, the atoms are arranged at the corners.

Z=\frac{1}{8}\times 8=1

The number of atoms of unit cell = Z = 1

In BCC, the atoms are arranged at the corners and the body center.

Z=\frac{1}{8}\times 8+1=2

The number of atoms of unit cell = Z = 2

The given unit cell is, FCC because the atoms are arranged at the corners and the center of the 6 faces.

Z=\frac{1}{8}\times 8+\frac{1}{2}\times 6=4

The number of atoms of unit cell = Z = 4

Thus, the name of given unit cell is, FCC (face-centered cubic unit cell)

You might be interested in
Use the reaction given below to solve the problem that follows: Calculate the mass in grams of aluminum oxide produced by the re
bearhunter [10]

Answer:  28.4 g of aluminum oxide is produced by the reaction of 15.0 g of aluminum metal

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}   

\text{Moles of} Al=\frac{15.0g}{27g/mol}=0.556moles

The balanced chemical equuation is:

4Al+3O_2\rightarrow 2Al_2O_3  

According to stoichiometry :

4 moles of Al produce == 2 moles of Al_2O_3

Thus 0.556 moles of Al will produce=\frac{2}{4}\times 0.556=0.278moles  of Al_2O_3

Mass of Al_2O_3=moles\times {\text {Molar mass}}=0.278moles\times 102g/mol=28.4g

Thus 28.4 g of aluminum oxide is produced by the reaction of 15.0 g of aluminum metal.

7 0
3 years ago
Ion<br> If we add an electron to a stable element we call it a(n)_____ion<br><br> anion<br> cation
masha68 [24]
The answer is a cation, I may be wrong but cation is plus and anion is subtract
3 0
3 years ago
___________ currents in the Earth's mantle cause plate movement which causes earthquakes and volcanic activity
Alecsey [184]
Convection currents in the Earth's mantle cause plate movement which causes earthquakes and volcanic activity.
6 0
3 years ago
What is removed from pyruvate during its conversion into an acetyl group?
enot [183]

Answer:

carbon dioxide

Explanation:

8 0
3 years ago
What is the splitting of the signal in the 1H NMR spectrum for the methyl protons of 1-bromo-2-methylpropane?
Arada [10]

Answer:

doublet

Explanation:

Proton MNR is used for the determination of no. of equivalents protons in a molecule

In the molecule, single NMR signal is produced for each set of protons.

Signal splitting is called spin-spin coupling and the splitting of signals depends upon the no. of neighboring proton.

The no. of signal for a proton is equal to n+1, where n is neighboring protons.

In 1-bromo-2-methylpropane, neighboring proton for both methyl protons are one. But the chemical environment of both the methyl protons are different.

Neighboring proton for methyl protons = 1

No. of signal for methyl protons = 1+1 =2

Hence, two doublets will be generated for each set of methyl protons. protons.

3 0
3 years ago
Other questions:
  • Balance the following reaction. A coefficient of "1" is understood. Choose option "blank" for the correct answer if the
    7·1 answer
  • Copper has a specific heat of 0.385 J/gºC.
    5·1 answer
  • How many moles of O2 are in 53 L of O2 at STP?<br> A) 2.4<br> B) 0.45<br> C) 1.65<br> D) 1187
    5·1 answer
  • How to measure the rate of a chemical reaction​
    5·1 answer
  • How many molecules are in 7.5 mol of h2o
    7·1 answer
  • 1 One mole of an element contains which of the following?
    11·1 answer
  • For the following following balance the equation and indicate the correct coefficients used. when Methanol (CH3OH) burns in oxyg
    15·1 answer
  • Metallic tantalum crystallizes in a body-centered cubic lattice, with one Ta atom per lattice point. If the edge length of the u
    5·1 answer
  • How many mol of phosphorus are obtained if 74.85 mol of carbon is used​
    10·1 answer
  • Semiconductors are more effective than metals as converters of solar radiation into electricity because?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!