How many moles of nitrogen, n, are in 65.0 g of nitrous oxide, n2o?

65 g of nitrous oxide contain 2.96 moles of nitrogen.

Explanation:

Given data:

mass of N₂O = 65 g

moles of nitrogen = ?

Solution:

First of all we will calculate the moles of N₂O.

number of moles = mass / molar mass

number of moles = 65 g/ 44.01 g/mol

number of moles = 1.48 mol

One mole of nitrous oxide contain two mole of nitrogen.

we will multiply the moles of nitrous oxide with two.

1.48 mol × 2 = 2.96 moles

So 65 g of nitrous oxide contain 2.96 moles of nitrogen.

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.