Question

This is the chemical formula for nickel tetracarbonyl (a powerfully poisonous liquid used in nickel refining) Ni(CO)4 A chemical engineer has determined by measurements that there are 11.3 moles of carbon in a sample of nickel tetracarbonyl. How many moles of oxygen ar in the sample?

Answer 1

Answer : The number of moles of oxygen present in a sample are 11.3 moles.

Explanation :

The given compound is, $Ni(CO)_4$

By the stoichiometry we can say that, 1 mole of of $Ni(CO)_4$ has 4 moles of CO.

Or we can say that, 1 mole of of $Ni(CO)_4$ has 1 mole of nickel (Ni), 4 moles of carbon (C) and 4 moles of oxygen.

That means,

Number of moles of carbon = Number of moles of oxygen

As we are given that:

Number of moles of carbon = 11.3 moles

So, number of moles of oxygen = number of moles of carbon = 11.3 moles

Therefore, the number of moles of oxygen present in a sample are 11.3 moles.