How many moles of n are in 0.165 g of n2o?

               0.045 moles of N

Solution:

Data Given:

                  Mass of N₂O  =  0.165 g

                  M.Mass of N₂O  =  44.02 g.mol⁻¹

Step 1: Calculate Moles of N₂O as,

                                Moles  =  Mass ÷ M.Mass

Putting values,

                                Moles  =  0.165 g ÷ 44.02 g.mol⁻¹

                                Moles  =  0.02266 mol

Step 2: Calculate Moles of N,

As,

                               1 mole of N₂O contains  =  2 moles of N

So,

                0.02266 mol of N₂O will contain  =  X moles of N

Solving for X,

                     X =  (0.02266 mol × 2 mol) ÷ 1 mol

                    X  =  0.045 moles of N

Explanation:

Hello,

In order to compute the required moles, one performs the following mole mass relationship in which it is seen there are two nitrogens into the :

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explanation: