The hydrogen peroxide molecule consists of two atoms of hydrogen and two atoms of oxygen, or H2O2. This is a polar molecule because the electrons of the molecule are not evenly distributed and has three intermolecular forces. These are:
London Dispersion Forces - a force of attraction between two molecules created by temporary dipoles which are caused by the movement of electrons in two atoms.
Dipole-dipole force - an electrostatic attraction caused by the positive end of one dipole attracted to the negative end of another dipole.
Hydrogen bonding - a special case of dipole-dipole where the creation of a temporary covalent bond occurs between the hydrogen of one molecule and the oxygen, nitrogen, or fluorine of another molecule
London Dispersion Forces - a force of attraction between two molecules created by temporary dipoles which are caused by the movement of electrons in two atoms.
Dipole-dipole force - an electrostatic attraction caused by the positive end of one dipole attracted to the negative end of another dipole.
Hydrogen bonding - a special case of dipole-dipole where the creation of a temporary covalent bond occurs between the hydrogen of one molecule and the oxygen, nitrogen, or fluorine of another molecule
Overall Appearance:
ReplyDeleteThe blog is well organized. I only wish that there were more sections in the blog, like a section devoted to polarity or a section devoted to intermolecular forces.
Accuracy of the Model:
The model of hydrogen peroxide is very accurate. Each element has its own different color, the bonds are clearly shown, and the electronegativity arrows are both pointing in the right directions.
Polarity:
The molecule is accurately described as polar. I would have liked to see more about the reason for the polarity (the bond angles and the actual molecular geometry).
Intermolecular Forces:
The blog correctly states that hydrogen peroxide is acted upon by three intermolecular forces: London dispersion forces, dipole-dipole forces, and hydrogen bonding. The blog also correctly describes all three forces. This part of the blog is one of the strongest parts of the blog, description-wise.
Effectiveness of the Ad:
The ad is highly effective. The ad explains common uses for hydrogen peroxide, yet also explains historical facts about the molecule. What I like about the ad most is that the ad also explains that the bottles of hydrogen peroxide are cheap and easy to come by, bringing peace of mind to the consumer. I have one spelling comment though: "soars" should be spelled "sores."
Overall Appearance:
ReplyDeleteThe blog is very well structured, in a good order. The simple layout makes it very straight forward and easy to read.
Accuracy of the Model:
The 3D model is accurate. it is clearly labels as well at the arrows showing the electronegativity added to it.
Polarity:
The polarity of the molecule was also correctly called polar. This is because of an uneven distribution of electrons, which was stated.
Intermolecular Forces:
This blog correctly states how the forces of attraction present are the London force and dipole dipole. It was also good that you took this a step further talking about another additional force that isn't present.
Effectiveness of the Ad:
I thought that this ad was very effective, because it talks about daily and extremely common uses, showing that it is hard not to cross paths with it.