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- Nanotechnology, the field of trying to build ultrasmall structures one atom at a time, has progressed in recent years. One potential application of nanotechnology is the construction of artificial cells. The simplest cells would probably mimic red blood cells, the body's oxygen transporters. For example, nanocontainers, perhaps constructed of carbon, could be pumped full of oxygen and injected into a person's bloodstream. If the person needed additional oxygen-due to a heart attack perhaps, or for the purpose of space travel-these containers could slowly release oxygen into the blood, allowing tissues that would otherwise die to remain alive. Suppose that the nanocontainers were cubic and had an edge length of 23 nanometers. A)What is the volume of one nanocontainer? B)Suppose that each nanocontainer could contain pure oxygen pressurized to a density of 85 g/Lg/L . How many grams of oxygen could be contained by each nanocontainer? C)Normal air contains about 0.28 gg of oxygen per…Nanotechnology, the field of trying to build ultrasmall structures one atom at a time, has progressed in recent years. One potential application of nanotechnology is the construction of artificial cells. The simplest cells would probably mimic red blood cells, the body's oxygen transporters. For example, nanocontainers, perhaps constructed of carbon, could be pumped full of oxygen and injected into a person's bloodstream. If the person needed additional oxygen-due to a heart attack perhaps, or for the purpose of space travel-these containers could slowly release oxygen into the blood, allowing tissues that would otherwise die to remain alive. Suppose that the nanocontainers were cubic and had an edge length of 23 nanometers. A) What is the volume of one nanocontainer? (Ignore the thickness of the nanocontainer's wall.) B)Suppose that each nanocontainer could contain pure oxygen pressurized to a density of 85 g/Lg/L . How many grams of oxygen could be contained by each nanocontainer?…Suppose that a semiconductor device is using a 10.51-mg sample of a hypothetical element By, that is doped with 0.8 % (by mole) of another hypothetical element Do. How many Do atoms are in the sample? Atomic Mass: By: 26.274 g/mol Do: 82.183 g/mol a. 3.75e+18 b. 4.64e+18 c. 1.93e+18 d. 2.84e+18
- A high-leaded brass that has a composition of 65.5 wt% Cu, 32.0 wt% Zn, and 2.5 wt% Pb with density equal to 8.94 g/cm^3, 7.13 g/cm^3, and 11.^35 g/cm3, respectively. Determine its approximate density Write up to 3 decimal places. Determine the atom percent (%) of lead. Atomic weights: Cu-63.55 g/mol ;Zn-65.41 g/mol ; Pb-207.2 g/mol Write up to 3 decimal places.A:08 الرسائل المحفو. . . 1 03: Rhenium has a Hexagonal Close-Packed crystal structure with an atomic radius of 0.137 nm and a ratio c/a of 1.615, compute: a) The volume of the unit cell. b) The theoretical density c) Atomic packing factor Note: Avogadro's' number = 6.023×10²³ Atomic weight = 186.21 g/mol إضافة وصف.. . IIIHcp structure. Show that the cla ratio for an ideal hexagonal close-packed strue- ture is 2 = 1.633. If cla is significantly larger than this value, the crystal structure be thought of as composed of planes of closely packed atoms, the planes being loosely stacked. %3D may
- If you know that aluminum has an atomic radius of 0.143nm and an atomic weight of 26.98g / mol || Laccording to: A. The volume of a unit cell in cubic cents B The theoretical density8. A pure silicon cont ains 5 x 1028 atom per cubic met er and the ratio of brok en bonds are one bond per 1012 silicon atom at 38°C. What is the ratio of broken of covalent bonds if the temperat ure raised to 75°C, where Eg = 1.1 eV? 9. A piece of pure semicon duct or contains 5x 1018 don or at oms at 27 °C. How far the Fermi level will move and in which direction if an addition al don or at oms of concentration of 1022 will put in?In the methane molecule, CH4, each hydrogen atom is at the corner of a regular tetrahedron with the carbon atom at the center. If one of the C-H is in the direction of
- 3. Show that in an ideal hexagonal-close-packed (hcp) structure, where the atomic spheres touch each other, the ratio c/a is given by :-()* ( 8 \ 1/2 = 1.633. (The hep structure is discussed in Section 7.) 4 The packing ratio is defined as the fraction of the total volume of the cell that is filled by atoms. Determine the maximum values of this ratio for equal spheres located at the points of simple-cubic, body-centered-cubic, and face-centered-cubic crystals.of dyne.sec, 7- Prove that (1 poise %3D ст?The characteristic energy for KCl is 1.4105eV . (a) Determine for the KC1 molecule, (b) Find the separation distance between the K arid Cl atoms.