GK
CHEMISTRY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
6.022 x 1023
|
|
|
4.022 x 1023
|
|
|
6.022 x 1025
|
|
|
4.022 x 1025
|
Detailed explanation-1: -Thus 6.022 × 1023 I atoms is referred to as 1 mol I.
Detailed explanation-2: -A mole is defined as the number of atoms in 12 grams of Carbon-12. The number of atoms or molecules in a mole is known as Avogadro’s number, and is equal to 6.022 x 1023. A mole is the SI unit for amount of a pure substance.
Detailed explanation-3: -Iodine’s molecular mass is calculated to be 126.9 grams per mole because its atomic mass is 126.9 grams.
Detailed explanation-4: -One mole of any substance contains 6.02 X 1023 units of that substance. Equally important is the fact that one mole of a substance has a mass in grams numerically equal to the formula weight of that substance.
Detailed explanation-5: -The MOLE (mol) is a unit of measurement that is the amount of a pure substance containing the same number of chemical units (atoms, molecules etc.) as there are atoms in exactly 12 grams of carbon-12 (i.e., 6.022 X 1023).