(a) Interpretation: The percentage of spherical atoms on surface of the cubic nanoparticle of edge-length 5.0 nm is to be calculated. Concept introduction: Nanotechnology is a field that studies the atoms and molecules on the nano-scale. Nano is a prefix used for 10 − 9 times of meter scale. In the nano regime, the properties of compounds change drastically from that of bulk. These unique properties of nanoparticles are due to the higher ratio of surface area to volume and charge to mass.
(a) Interpretation: The percentage of spherical atoms on surface of the cubic nanoparticle of edge-length 5.0 nm is to be calculated. Concept introduction: Nanotechnology is a field that studies the atoms and molecules on the nano-scale. Nano is a prefix used for 10 − 9 times of meter scale. In the nano regime, the properties of compounds change drastically from that of bulk. These unique properties of nanoparticles are due to the higher ratio of surface area to volume and charge to mass.
The percentage of spherical atoms on surface of the cubic nanoparticle of edge-length 5.0nm is to be calculated.
Concept introduction:
Nanotechnology is a field that studies the atoms and molecules on the nano-scale. Nano is a prefix used for 10−9 times of meter scale.
In the nano regime, the properties of compounds change drastically from that of bulk. These unique properties of nanoparticles are due to the higher ratio of surface area to volume and charge to mass.
Interpretation Introduction
(b)
Interpretation:
The percentage of atoms on surface of cubic nanoparticle of edge length 10.0nm is to be calculated.
Concept introduction:
Nanotechnology is a field that studies the atoms and molecules on the nano-scale. Nano is a prefix used for 10−9 times of meter scale.
In the nano regime, the properties of compounds change drastically from that of bulk. These unique properties of nanoparticles are due to the higher ratio of surface area to volume and charge to mass.
What would be the best choices for the missing reagents 1 and 3 in this synthesis?
1. PPh3
3
2. n-BuLi
• Draw the missing reagents in the drawing area below. You can draw them in any arrangement you like.
• Do not draw the missing reagent 2. If you draw 1 correctly, we'll know what it is.
• Note: if one of your reagents needs to contain a halogen, use bromine.
Click and drag to start drawing a structure.
Identify the missing organic reactants in the following reaction:
X + Y
H+
two steps
Note: This chemical equation only focuses on the important organic molecules in the reaction. Additional inorganic or small-molecule reactants or products
(like H2O) are not shown.
In the drawing area below, draw the skeletal ("line") structures of the missing organic reactants X and Y. You may draw the structures in any arrangement that
you like, so long as they aren't touching.
Click and drag to start drawing a
structure.
Х
:
Draw the mechanism of friedel-crafts acylation using acetyl chloride of m-Xylene
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