Calculate the mass fraction of each element in H2SO4 and in N3po4

M H2SO4 = 98 amu, M Na3PO4 = 164 amu ..
In sulfuric acid, D (H) = (1 * 2): 98 * 100% = 2.04%, D (S) = 32: 98 * 100% = 32.65%, D (O) = (16 * 4 ): 98 * 100% = 65.31%.

In sodium phosphate, D (Na) = (23 * 3): 164 * 100% = 42.07%, D (P) = 31: 164 * 100% = 18.90%, D (O) = (16 * 4): 164 * 100% = 39.03%.



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