What is a mole in chemistry for dummies?
The mole (abbreviate mol and sometimes called Avogadro’s number) is a conversion number that allows a chemist or chemistry student to move from the microscopic world of atoms, ions, and molecules to the macroscopic world of grams, kilograms, and tons.
What is mole in body?
Moles occur when cells in your skin grow in a cluster instead of being spread throughout the skin. Most moles are made of cells called melanocytes, which make the pigment that gives your skin its natural color.
What is the mole of oxygen?
The mass of oxygen equal to one mole of oxygen is 15.998 grams and the mass of one mole of hydrogen is 1.008 g.
Why do I have a black mole?
What Causes a Mole? Moles occur when cells in the skin grow in a cluster instead of being spread throughout the skin. These cells are called melanocytes, and they make the pigment that gives skin its natural color. Moles may darken after exposure to the sun, during the teen years, and during pregnancy.
What can moles convert to?
Avogadro’s number is a very important relationship to remember: 1 mole = 6.022×1023 6.022 × 10 23 atoms, molecules, protons, etc. To convert from moles to atoms, multiply the molar amount by Avogadro’s number.
What is mole formula?
Number of moles formula is. Number of moles = Mass of substance / Mass of one mole. Number of moles = 95 / 86.94.
What does 1 mole of water look like?
Thus, for example, one mole of water (H2O) contains 6.02214076×1023 molecules, whose total mass is about 18.015 grams and the mean mass of one molecule of water is about 18.015 daltons.
|Unit of||Amount of substance|
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How big would a mole of jellybeans be?
Volume of Jelly Beans: On average they are about 2 cm long by about 1.5 cm in diameter. The volume of a single jellybean is 2cm x 3.14 (1.5cm/2)2 = 3.533 cm^3.
Why is a mole such a large number?
The molar mass of some substance is the mass in grams of one mole of that substance. This mass is given by the atomic weight of the chemical unit that makes up that substance in atomic mass units (amu). … The mole designates an extremely large number of units, 6.02214076 × 1023.