SCIENCE
PHYSICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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kilogram
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gram
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kelvin
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mole
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Detailed explanation-1: -The number 6.02×1023 is called Avogadro’s number, the number of representative particles in a mole.
Detailed explanation-2: -WHAT’S A MOLE? Avogadro’s Number is the number of atoms, molecules, or other objects that makes up one mole of a substance. For example: 6.022 x 1023 hydrogen atoms represent one mole of hydrogen.
Detailed explanation-3: -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-4: -A mole (mol) is the amount of a substance that contains 6.02×1023 representative particles of that substance.
Detailed explanation-5: -The value of the mole is equal to the number of atoms in exactly 12 grams of pure carbon-12. 12.00 g C-12 = 1 mol C-12 atoms = 6.022 × 1023 atoms • The number of particles in 1 mole is called Avogadro’s Number (6.0221421 x 1023).