A moment's thought shows you can't weigh an atom on a traditional scale. Instead, physicists for over a century have used an instrument called a mass spectrometer. Invented in 1912 by physicist J.J. Thomson and improved incrementally, it works like this: First, physicists "ionize" a gas ...
Most of us would probably interpret this question as "How much do you weigh?" or possibly "How tall are you?" There are, however, a lot of equally plausible answers. For example, how much volume (say, in liters) does your body occupy? How many individual atoms or cells does it cont...
At its most basic, water is a molecule with one oxygen atom and two hydrogen atoms, bonded together by shared electrons. It is a V-shaped polar molecule, which means that it's charged positively near the hydrogen atoms and negatively near the oxygen atom. Water molecules are naturally attrac...
In other words, Einstein gave us a way to weigh an atom. These "united states" And just when people were getting comfortable with the size of these minuscule morsels of matter, thinking that these had to be the smallest things possible, someone came along to complicate it. Operating in par...
oxygen-hydrogen (O - H) The chemical bonds between the atoms are shared pairs of electrons. Chemical bonds are much like springs: They can bend and stretch. These properties are important in detecting ethanol in a sample by infrared (IR) spectroscopy. Read More Types of Devices: Intoxilyze...
In this video from ScienceOnTheBrain we learn how to isolate the sugar in a can of soda. To find out how much sugar is in soda, pour a can into a pot and boil it until all the water is gone. You will be left with the sugar, and then you can weigh it. First weigh your pot ...
If a piece of aluminium consists of 6.02*10^{23} atoms, how much does it weigh? How do atoms have nuclear decay in nature? Is it due to oxygen or nitrogen? How can we tell how atoms react with each other by looking at the periodic table and how can we tell if an electron has ...
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In order to determine the number of moles of a given compound, the first thing you need to do is find the molecular mass (or molecular weight) of the compound in question. Once you've done that, you need to determine how much the compound weighs physical
What charges an atom? How can an organism be cloned? If a piece of aluminium consists of 6.02*10^{23} atoms, how much does it weigh? How do we know Mercury is made of iron and nickel if we have never sent anything to visit it? What is the chemistry of iron? How...