This is the chemical formula for nickel tetracarbonyl (a powerfully poisonous liquid used in nickel refining): nico4 a chemical engineer has determined by measurements that there are 9.55 moles of nickel in a sample of nickel tetracarbonyl. how many moles of oxygen are in the sample? round your answer to 3 significant digits.

The chemical formula is:

NiCO4

We see from the formula that there are 4 moles of Oxygen (O) per 1 mole of Nickel (Ni). Therefore the moles of Oxygen in the sample is:

moles O = 9.55 moles Ni * (4 moles O / 1 mole Ni)

moles O = 38.2 moles O

the electron configuration that you gave me has 16 electrons ergo it has 16 protons ergo it is the element sulfur.

it is the most commonly accepted one