Given the balanced equation: 2NO2 —————->N2O4
what mass in grams of n2o4 is produced when 10 moles of no2 is consumed?

a) 153 b) 690 c) 368 d) 460 e) 1150

d) Mass = 460 g      

Explanation:

Given data:

Mass of N₂O₄ produced = ?

Number of moles of NO₂ consumed = 10 mol

Solution:

2NO₂     →        N₂O₄

Now we will compare the moles of NO₂  and   N₂O₄.

                          NO₂         :             N₂O₄

                            2            :                1

                           10            :            1/2×10 = 5 mol

Mass of  N₂O₄ produced:

Mass =  number of moles × molar mass

Mass = 5 mol × 92 g/mol

Mass = 460 g            

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