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A compound that contains 57.8 percent C, 3.6 percent H, and 38.6 percent O by mass. a. What is its empirical formula?
b. What is the molecular formula if the molar mass is 166 g/mol.
Show work on how to get the answer

Because electrons have negligible mass, to account for the mass of the isotope, there must be 16 neutrons, 16 neutrally charged, massive, fundamental particles present in the sulfur nucleus. and thus finally, if we have the 32s2− ion, there are 18 electrons, 16 protons, and 16 neutrons.

Ithink 2 is the correct

What’s the question