dbrown4 dbrown4
  • 04-02-2017
  • Chemistry
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2NaN3=2Na+3N2. If 0.21 moles of NaN3 reacts, what mass of nitrogen would result

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DoctorCass
DoctorCass DoctorCass
  • 04-02-2017
Use the mole ratio:  2 moles of NaN3 :  3 moles of N2
             you have :   0.21 moles of NaN3  : x moles N2
             Cross multiply: you get 0.3 moles for N2
To find the mass= # of moles * molecular mass
                             0.3 * 28 
                       = 8.4g


    
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