PHYSIOLOGY
GENERAL PHYSIOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Ion
|
|
|
Mole
|
|
|
Isotope
|
|
|
Anion
|
Detailed explanation-1: -One mole of a substance is equal to 6.022 × 10²³ units of that substance (such as atoms, molecules, or ions). The number 6.022 × 10²³ is known as Avogadro’s number or Avogadro’s constant.
Detailed explanation-2: -A mole, abbreviated as mol, is a measurement of amount used by scientists. One mole is equal to 6.022x1023 units. A mole is an important unit because on the periodic table a mole of a substance is equal to its atomic mass in grams.
Detailed explanation-3: -The mole, symbol mol, is the SI unit of amount of substance. One mole contains exactly 6.022 140 76 x 1023 elementary entities. This number is the fixed numerical value of the Avogadro constant, NA, when expressed in the unit mol–1 and is called the Avogadro number.