An example of a semiconductor is ZnS with a particle diameter of 1.8 nanometers. Convert this value to (a) dm (decimeters) and (b) inches.

Q: Which substances conduct electricity?

A: The conductance of electricity in a substance is a measure of how easily the flow of electricity…

Q: Diamond is a strong and hard material that does not conduct electricity. Verify this statement.

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Q: Chromium (III) sulfate is used for decorative plating. Determine the amount of time in hours needed…

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Q: Benefits

A: Nano Medicine is defined as the field of medicine that aims to use the properties and physical…

Q: how does the diameter of each ripple changes as time passes?

A: When a pebble or a rock is dropped in the water then the ripples or waves are formed which starts…

Q: a) What is the chemicals in plastic and what are the physical and chemical properties of it.

A: Chemicals of plastics In the case of plastic bags, the repeating units are ethylene, or ethene. When…

Q: An engineer is designing a new phone and is in the process of choosing the elements to make up the…

A: Different elements shows different physical and chemical properties . There are elements which are…

Q: What is a nanotechnology?

A: Nanotechnology has to be defined.

Q: 1. Define tensile strength? 2. Why is it important to test the tensile strength of materials? 3. The…

A: 1. Usually when a material comes under stress or strain it tends to break.So the ammount of load or…

Q: 2. Research on recent innovations or discoveries in the nanoengineering world. Discuss only the…

A: Some of the recent developments in the field of nanotechnology are: Nano sensors that detect heart…

Q: Some hypothetical metal has simple cubic crystal structure. If its atomic weight is 71.09 g/mol and…

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Q: If you are using a polymer with a density of 1.33 g/mL and you place a 42.865 g cylinder of that…

A: Density of the polymer = 1.33 g /mL.Mass of the cylinder of polymer = 42.865 g.

Q: A metal artifact with a mass of 814.0 lbs and a length of 6.25 ft is recovered from the Queen Anne's…

A:

Q: A certain process can plate out 80.6 micrometers ^3 of gold onto a metallic surface per second. How…

A: Volume can be related to area and thickness as:

Q: es of 25 A diameter, find: a) number of surface atoms Ns. b) number of volume atoms Nv. (or bulk…

A: Given as, Diameter=2.5nm,Radius=1.25nm,volume=43 πr3 =43 ×3.14×1.253 =8.18nm3

Q: (b) Why nanoparticles are considered as unique materials?

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Q: Define the following - Tablet thickness - Tablet Diameter - Percent (%) Deviation

A: 1. Tablet thickness is determined by the diameter of the die. It is measured in mm .   2. Diameter…

Q: Given the following types of glassware, arrange them according to accuracy of measured volume. III.…

A: The basic concept  of laboratory  instruments  handling  will solve this problem  as shown in next…

Q: Give at least three differences of a bulk vs a fine chemical.

A: The products of the chemical industry can be classified as fine chemicals and bulk chemicals.

Q: Give an example of an ethical dilemma that can occur in nanotechnology research. Discuss why it is…

A: Nanotechnology is the study of special properties of particles having size in the range 1 - 100…

Q: Why do gems have different properties than metals? I need a claim,evidence and reasoning.

A: Gems are the polished forms of gemstones. They are precious stones or minerals such as diamond,…

Q: Which of the following is a good conductor of electric current? plastic silver wood rubber

A: • The materials which allow electric current to pass through them easily are called good…

Q: Nanomaterials provide various applications that can benefit humans. Are there possible disadvantages…

A: As we know that Nanomaterials are very useful for humans , these are useful in different forms as a…

Q: What makes nanotechnology special in terms of how it is used to develop products? *   A. It helps in…

A: Nanotechnology can be defined as branch of chemistry  that  uses of matter on atomic and…

Q: Despite the radical increase in the use of plastics over the last few decades, the mass of plastics…

A: With the increasing population, the use of plastics has been increased because of which there were…

Q: Give an example of nanoparticles found in animals and discuss it briefly.

A: Nanoparticles are minute particles ranging from 1 to 100 nanometers in size. Nanoparticles exhibit…

Q: Differentiate between Penetration and Shielding?

A: To find: Difference between penetration and shielding

Q: make

A: Given statement is true.

Q: 23.0mL is the measured volume of the crucible. What is the volume in cL?

A: To convert mL to cL , conversion factor is 1 milli liter = 0.1 centi liter 1 mL = 0.1 cL

Q: explain standard curves in detail?

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Q: Examine the current state of research on the safety of products contain- ing nanoparticles.

A: Nanoparticles are now being used in the manufacture of scratchproof eyeglasses, crack- resistant…

Q: Select the Heterogeneous mixture from the list.a) A bar of Gold b) Cement with gravel c) Ammonia d)…

A: A homogeneous mixture has uniform composition throughout the mixture whereas the heterogeneous…

Q: 1. As shown, silicon for computer chips is grown in large cylinders called "boules" that are 300 mm…

A: a) Length of the Si boule = 2m = 2000 mm  Thickness of the wafers = 0.75 mm  Number of wafers that…

Q: How can you differentiate between natural and engineered nanoparticles in the environment?

A: The nanoparticles which occur in nature are called Natural Nano particles. These are generally found…

Q: a Now make a table with these headings: Item Properties of the plastic in it of this plastic this…

A: Items such as juice bottles, corrosion-resistant pipes, and wires are chosen for the given purpose.

Q: Q8. Copper is well-known conductive material, but it can lose its conductivity if size is reduced to…

A: effect on conductivity of conducting material due to reduction in size

Q: Which balance, triple-beam or electronic, provides the more precise measurement? Explain.

A: The total significant figures in the measurement of mass by a Triple-Beam Balance = 4 The total…

Q: Asbestos is a fibrous silicate mineral with remarkably hightensile strength. But it is no longer…

A: The tensile strength of Grunerite = 3.5×102 kg/mm2 (capacity of holding) The tensile strength of…

Q: 4 For Ag atoms forming a nanoparticles of 25 A diameter, find: a) number of surface atoms Ns. b)…

A:

Q: does personal care use nanotechnology?

A: NANOTECHNOLOGY -   As we know that , Nanotechnology , it is defined as  the science of converting…

Q: What is the total length of two pieces of tubing which measure 3.5cm and 1.23cm?

A: Given : Length of tube piece 1 = 3.5 cm Length of tube piece 2 = 1.23 cm

Q: Graphene, is a sheet of pure carbon with a thickness of 0.335nm. How many layers of graphene will be…

A: Graphene sheet thickness can be determined using a simple equation.…

Q: Why do meltiing, freezing and boiling point varies and depends on a kind of matter? Not less than 6…

A: Matter can be defined as substance that possess definite mass and volume. Matter can be solid,…