How many atoms of copper will react with 33.9 l of nitrogen stp to produce copper nitride

Answer : The number of atoms of copper will be,

Solution :

As we know that 1 mole contains number of atoms

And,

At STP, 1 mole contains 22.4 liter volume of gas

First we have to calculate the moles of copper.

The balanced chemical reaction will be,

From the balanced chemical reaction we conclude that, 1 mole of nitrogen gas react with 6 moles of copper.

As, 22.4 L volume contains 6 moles of copper

So, 33.9 L volume contains moles of copper

Now we have to calculate the number of atoms of copper.

As, 1 mole of copper contains number of copper atoms

So, 9.08 moles of copper contains number of copper atoms

Therefore, the number of atoms of copper will be,