(40) GCSE Chemistry Revision "Avogadro's Constant 1"

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Last updated 2:58 PM on 11/10/24
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8 Terms

1
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Avogadro's constant

A number used to convert between the amount of substance in moles and the number of atoms or molecules, approximately 6.02 × 10^23.

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Mole

A unit of measurement in chemistry that represents a specific number of particles, typically atoms or molecules.

3
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Water (H2O)

A molecule consisting of two hydrogen atoms and one oxygen atom, totaling three atoms.

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Methane (CH4)

A molecule consisting of one carbon atom and four hydrogen atoms, totaling five atoms.

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Calcium hydroxide (Ca(OH)2)

A molecule consisting of one calcium atom, two oxygen atoms, and two hydrogen atoms, totaling five atoms.

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Sodium oxide (Na2O)

A molecule consisting of two sodium atoms and one oxygen atom, totaling three atoms.

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Calculation of molecular atoms

The process of determining the total number of atoms in a given number of moles of a molecule by analyzing its chemical formula.

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6.02 × 10^23

The numerical value of Avogadro's constant, representing the number of molecules in one mole.