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Q: what is the gram formula mass of NH43PO4?

  • 1
    139.54
  • 2
    140.70
  • 3
    149.08
  • 4
    153.24
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Answer : 3. "149.08"
Explanation :

Answer: C) 149.08 Explanation: The gram formula mass is nothing but molar mass.   Composition :   Symbol      Element       Atomic weight       Atoms          P         Phosphorus       30.973762               1       = 30.973         O         Oxygen             15.9994                  4       =  63.998         N         Nitrogen            14.0067                  3       =  42.020         H         Hydrogen          1.00794                  12      =  12.096     Total   =  30.973+63.998+42.020+12.096 = 149.087

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