Molecule Search Results

How To: Represent the structure of a molecule in organic chemistry

Need some help figuring out how to represent an organic molecule? You're in luck: In this free video science lesson from Internet pedagogical superstar Salman Khan, you'll learn how to just that. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For more information, including detailed, step-by-step instructions, take a look.

How To: Visualize a cyclohexane molecule with chair & boat shapes in organic chemistry

In this free video science lesson from Internet pedagogical superstar Salman Khan, you'll learn how to represent and interpret cyclohexane molecules in organic chemistry. Whether you need help studying for that next big test or could just use a hand finishing your homework, you're sure to be well served by this video lesson. For more information, including detailed, step-by-step instructions, take a look.

News: Free Protein Folding Game Cracks HIV Molecule Riddle

Foldit is definitely a niche game. The sole gameplay mechanic is attempting to fold complex proteins into smaller and more efficient shapes following the rules of molecular physics and biology. Points are awarded based on how small one can make the protein. Online leaderboards track players' relative progress and allows them to view and manipulate other players' completed designs. It's original, certainly, but no developer is going to ship a million units of a game about molecular-level prote...

How To: Easily balance a chemical equation

In this video, we learn how to easily balance a chemical equation. In a balanced equation, there should be the same number of atoms on both sides of it. There are no rules that explain how you get a balanced reaction from expression. First, start on the molecule or compound that is the most atomically complex. After you look at this, you can learn how to make the rest of the equation equal to each side. This is a complex process that you must walk through to figure out, but it will result in ...

How To: Describe chemical formulas

This is a video tutorial in the Education category where you are going to learn how to describe chemical formulas. A chemical formula represents the actual number of atoms of each element within a molecule. Different visual representations of molecules include the ball and stick three dimensional model, a line drawing that represents the structure in two dimensional terms, and a shorthand used by organic chemists. If a molecule has 4 green atoms and 2 orange atoms, the ratio of green to orang...

How To: Understand the hemoglobin & its role in the body

An in-depth explanation of the structure of the hemoglobin molecule, the process by which it binds with the oxygen in the lungs, how it dumps the same oxygen molecule at the appropriate location in the body and how carbon-dioxide gets attached to the hemoglobin molecule are the topics which the narrator in this video explains with diagrams and a few equations.

How To: Calculate and understand the concept of molar mass

Two college students; Kevin Martin and Joey Smokey introduce the concept of Molar Mass. They start of by explaining what molar mass is, which is the relationship of a mole and a gram, it totals up the weight(in g)of a molecule. An example: say you have this compound, Sodium phosphate (Na3PO4). You know you have three sodium atoms, one phosphorus atom, and four oxygen atoms. You basically find the weight of each atom, if you have three sodium atoms, you multiply it's atomic mass by 3 (the numb...

How To: Understand diffusion & osmosis

Inside the container we have some water molecules and inside those water molecules we have some sugar molecules. We have more water molecules so in this case the thing which is more of called SOLVENT and the thing which is lesser is called SOLUTE. We can say sugar molecule dissolves in the water. The combination of Solvent and Solute is called the SOLUTION. Diffusion is spreading the molecules from high concentration to low concentration. If we take two containers of water which are joined fr...

News: Starve E Coli of Copper to Cure Aggressive UTIs

Urinary tract infections (UTIs) drive over eight million people to seek medical attention every year. Almost all — as many as 90% — of those infections are caused by Escherichia coli. Copper can kill bacteria, but E. coli has found a way to capture the copper, preventing its antibacterial action. Now, researchers have found that, in a cruel irony, the bacteria use the copper it grabs as a nutrient to feed its growth.

How To: Take the Bite Out of Garlic

Garlic is magical. It fends off vampires (or so I hear), helps lower blood pressure, reduces the production of cholesterol in the body... oh, and it's also freaking delicious, of course. Garlic is a culinary staple in countries all over the world. That lovable stink and sharp bite of flavor are essential to many dishes we know and love today, from spaghetti to sesame chicken.

How To: Do water's skin or surface tension experiment

While the concepts of molecule interaction, zero force and energy states might be a little beyond an elementary school science fair's scope, the basic idea of water's capabilities and naturally prepared access to animals and insects that rely on it as a habitat is certainly worth the time. Learn how to duplicate this natural phenomenon in this free video clip series with our expert Scott Thompson as he demonstrates the occurrence of water skin or skin tension, and shows you and your children ...

How To: The Easiest Way to Smoke Food Without a Smoker

There's something primal about the smell of smoking food. Somewhere deep in the recesses of our souls, we remember a time when humans only ate by the fire. Or perhaps that's just something I tell myself. Either way, it's hard to smell smoke and food and not feel like you should be eating. And, as chef Edi Frauneder said in a recent Saveur article, "Grilling is convivial. There's something about this act of coming together over an open flame that just says vacation."

News: Replacement Joints with Antibiotics on Board Mean Lower Chance of Infection & Fewer Surgeries

For about a million Americans each year, a joint replacement brings relief from pain and restored mobility. But, 5–10% of those people have to endure another surgery within seven years, and most of those are due to an infection in their new joint. If doctors could treat infections more effectively, patients could avoid a second surgery, more pain, and another rehabilitation.

News: Taking Genetic Scissors to Infected Cells Could Cure HIV

Being infected with HIV means a lifetime of antiviral therapy. We can control the infection with those drugs, but we haven't been able to cure people by ridding the body completely of the virus. But thanks to a new study published in Molecular Therapy by scientists at the Lewis Katz School of Medicine (LKSOM) at Temple University and the University of Pittsburgh, all that may change.

How To: Remove Old Food & Drink Stains with This Cheap, Easy Homemade Solution

I own two aprons—a cute one for company, and another for the hard-core cooking duties, like cutting up chicken and making stock. The sad truth is that I almost never remember to wear either of them. So, much of my clothing ends up spattered with grease, liquid, and bits of fruit and vegetable. While stain-removing sprays, sticks, and pens are all effective to a certain extent, they have two drawbacks—they're expensive and sometimes I need to use them in large quantity, like when a piece of eg...

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