A: Prednisone is a medication that is in the class of medications called steroids that are used to treat inflammation and to suppress immune system responses. The prescribing information does not list muscle cramps as a common side effect of prednisone.: Prednisone is a corticosteroid medication that is used to treat a variety of pain and inflammatory conditions. You should take the prednisone pack exactly as it was prescribed by your physician. If the pain returns when you have completed the course of prednisone, call your physician.
In addition to mass, we can also measure how big a molecule is. A water molecule is about 0.27 of a nanometer across. DNA is about 2 nanometers across and can stretch out to meters in length. Amazing, when you think about that length of DNA being stuffed inside a cell. But that is because it is so thin, about 1/1,000,000,000 as thick as it is long.
A molecule of water consists of a single atom of oxygen and two atoms of hydrogen. Oxygen has an atomic weight of 15.9994. One mole of oxygen, therefore, has a mass of just under 16 grams. Hydrogen has an atomic weight of 1.0079, and so a mole of hydrogen weighs just over 1 gram. This means that 18 grams of water contains one 16-gram mole of oxygen and two 1-gram moles of hydrogen. The number of particles in a mole is a constant known as Avogadro's number, which has a value of 6.022 x 10^23. Two moles of hydrogen, therefore, is double Avogadro's number. Learn more about Atoms & Molecules