Calculate number of atoms in a cubic centimeter of silicon

Assignment Help Physics
Reference no: EM13952643

1. Nitrogen may be combined with oxygen in proportion by mass of 1.75 g nitrogen to 1.00 g oxygen to form the gas nitrous oxide, N2O. The same elements may be combined in the ratio of 0.438g nitrogen to 1.00g oxygen. What is the atomic composition of the second compound?

a. NO(2)
b. NO
c. N(2)O
d. NO(3)

2. In an electrolysis experiment, a student plated silver onto an electrode, maintaining a current of 0.800 A for 46.0 min. What mass of silver was deposited?

a. 1.23 g
b. 2.47 g
c. 3.62 g
d. 3.10 g

3. The density of particles n is a suspension is found to go as n=n0e-lamdah, where lamda is a constant and h is the height. What is the value of lamda if the density falls to no/2 When h = 10 microm?

a. 69,300 /m
b. 34,650 /m
c. 23,000 /m
d. 11,000 /m

4. Silicon has a density of 2.23 g/cm3 and an atomic mass of 28.09 g/mol. Calculate the number of atoms in a cubic centimeter of silicon?

a. 6.02 x 10^22
b. 2.02 x 10^22
c. 4.78 x 10^22
d. 6.02 x 10^23

5. X rays of lamda= 0.709 X 10^-10 m are diffracted in second order ( n=2) from a silver bromide crystal. If the scattering angle is 2q = 28.50 degree , What is the spacing between the atomic planes?

a. .288 nm
b. .388 nm
c. .62 nm
d. 1.02 nm

6. X rays are Bragg-diffracted from a cesium chloride crystal with interplanar spacing of 4.11 X 10^-10m In first order, the scattering 2q is 7.59 degree, What is the wavelength of theX rays?

a. .0544 nm
b. 0.544 nm
c. 5.44 nm
d. 54.4 nm

7. Calculate the angular deflection of an electron beam traveling at 1.0 X 10^7 m/s through a region of magnetic field B=1.0 X 10^-3 T that is 1.5 cm long

a. 0.52 rad
b. 0.26 rad
c. .13 rad
d. .33 rad

Reference no: EM13952643

Questions Cloud

Who supports bigger government : In 2012, researchers at the Edelman Public Relation firm asked a representative sample of 1,000 people in the United States this question: "Do you think your government regulates business too much, not enough, or the right amount?"
Difference between vertical and horizontal information : Describe the difference between "vertical" and "horizontal" information? How is each used by the police, fire or EMS personnel? Give a real-life example for each!
What is the mass of an aspartame molecule : The artificial sweetener NutraSweet is a chemical called aspartame (C14 H18 N2 O5). What is its molecular mass (in atomic units)? What is the mass (in kg) of an aspartame molecule?
Write a program that includes a function picnic() : This function will be called from the main program and when it returns to main, it will print out the values of HOTDOGS, HAMBURGERS,SALAD,PICKLES.
Calculate number of atoms in a cubic centimeter of silicon : The density of particles n is a suspension is found to go as n=n0e-lamdah, where lamda is a constant and h is the height. What is the value of lamda if the density falls to no/2 When h = 10 microm?
Oregon adventures provides tours of scenic locations : Assume that sales for each quarter in 2012 will be 30 percent higher than they were in 2011 and the price per tour is $80.Prepare a sales budget by quarter for 2012.
Degree of a statically indeterminate structure : How to find out the degree of a statically indeterminate structure?
What conditions are the computed values inaccurate : Why can a harmonic function be used to compute vibrational energy states for a DIATOMIC molecule, and under what conditions are the computed values inaccurate?
Calculate the total length of cable ae : Explain the advantages and disadvantages of suspension bridge compare to cantilever bridge - Compute the sag yB and the maximum tension in the cable.

Reviews

Write a Review

 

Physics Questions & Answers

  What is the height of the flower image on the film

A 35 mm camera using a standard 50.0 mm lens is focused on a 1.80 m tall person who is standing 3.25 m from the lens. What is the height of the flower%u2019s image on the film

  What frequency is the string emitting

You have tuning forks for frequencies of 294 hz and 300hz. (A) What beat frequency is heard when you play both forks at the same time? (B) If you have an (unturned) string which makes for a beat frequency of 8 hz against the 294hz fork and 2hz agains..

  Compute the change in the internal energy of the gas

A gas is compressed adiabatically by a constant force of 10 N that acts over a 0.5 m distance. What is the change in the internal energy of the gas

  The linear speed of the chain as it moves between sprockets

The front and rear sprockets on a bicycle have radii of 9.00 and5.10 cm, respectively. The angular speed of the front sprocket is 9.70 rad/s. Determine the following. The linear speed of the chain as it moves between the sprockets.

  What is the force of the fish on the line

A cylindrical fishing reel has a moment of inertia of I = 6.61E-4 kg*m2 and a radius of 3.98 cm. A friction clutch in the reel exerts a restraining torque of 1.47 N*m if a fish pulls on the line. What is the force of the fish on the line

  Find the six lowest energy levels in a quantum well

Calculate the six lowest energy levels in a quantum well with infinitely high walls with a width of L=20nm and another which is only L=4nm

  How many football fields the shuttle cover in blink of eye

The Space Shuttle travels at a speed of about 7.60 103 m/s. The blink of an astronaut's eye lasts about 120 ms. How many football fields (length = 91.4 m) does the Shuttle cover in the blink of an eye?

  Two charges are separated horizontally

Two charges of +12nc and +18nc are separated horizontally by28mm. What is the resultant field intensity at a point 20 mm from each charge and above a line joining the two charges?

  Find the ratio of the electric force

A 0.10g honeybee acquires a charge of 25pCwhile flying, What is the ratio of the electric force on the bee to the bee's weight

  What is the magnitude of its acceleration

A projectile is launched vertically from the surface of the earth with an initial speed v0 = 6.43 km/s. What is the magnitude of its acceleration (m/s2 ) 1620 km above the surface of the earth

  Three identical blocks are stacked with each extending

Three identical blocks are stacked with each extending as far aspossible over the block beneath it. Find the distance Dthat the top block overhangs the bottom block if the length of eachblock is 34.6 cm.

  A car traveling at 364 ms takes 270 minutes to travel a

a car traveling at 36.4 ms takes 27.0 minutes to travel a certain distance according to the drivers clock in the car.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd