Q:
what is the gram formula mass of ?
Answer & 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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