Question

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

Answer 1

Hello user


Answer: 33.9 L of N₂ will react with 576.96 g (9.08 moles) of Cu.

I hope I helped
-Chris

Answer 2

Answer : The number of atoms of copper will be,
`54.67* 10^(23)`

Solution :

As we know that 1 mole contains
`6.022* 10^(23)` 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,

`6Cu+N_2\rightarrow 2Cu_3N`

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
`(6)/(22.4)* 33.9=9.08` moles of copper

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

As, 1 mole of copper contains
`6.022* 10^(23)` number of copper atoms

So, 9.08 moles of copper contains
`9.08* (6.022* 10^(23))=54.67* 10^(23)` number of copper atoms

Therefore, the number of atoms of copper will be,
`54.67* 10^(23)`