Chemistry Examples

$65 (29) C u$

Step 1

To find the mass of $1$ mole of $65 (29) C u$ look up the atomic mass of each element and multiply it by the number of atoms contained in each element in the molecule.

mass of $1$ mole of $65 (29) C u$ $=$ $(mass of u)$

Step 2

Fill in the atomic masses from the periodic table.

mass of $1$ mole of $65 (29) C u$ $=$ $(0)$

Step 3

Remove parentheses.

mass of $1$ mole of $65 (29) C u = 0 g$

Step 4

One mole of any gas occupies $22.4 L$ at STP (standard temperature and pressure).

$V = 22.4 L$

Step 5

Density is mass over volume.

$\frac{0 g}{22.4 L}$

Step 6

Multiply $0$ by $g$ .

$\frac{0}{22.4 L}$

Step 7

Divide $0$ by $22.4 L$ .

$0$