how many molecules of nitrogen dioxide are there in 2.00 moles of nitrogen dioxide ? Show steps please!

2 moles of NO₂ contain 12.044 × 10²³ molecules  of NO₂

Explanation:

Given data:

Number of moles of NO₂ = 2.00 mol

Number of molecules of NO₂ = ?

Solution:

It will be solve through Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.  The number 6.022 × 10²³ is called Avogadro number.

1 mole = 6.022 × 10²³ molecules

2.00 mole NO₂  × 6.022 × 10²³ molecules  of NO₂  / 1 mol of NO₂

12.044 × 10²³ molecules  of NO₂

Thus, 2 moles of NO₂  contain 12.044 × 10²³ molecules  of NO₂ .

in chemistry, adhesion and cohesion are attractive forces that exist between molecules. they hold the molecules together from each other. they are different in that adhesive force exists between molecules of different substance while cohesive force happens between molecules of same substance.

adhesion between water and glass causes water molecules at the edge of water and glass interface to climb up the wall in a narrow glass tube. this is called capillary action. cohesion is what gives glass its shape and causes water to form a droplet.

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