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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