Find the Density at STP SO_4

$S O_{4}$

Step 1

To find the mass of $1$ mole of $S O_{4}$ 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 $S O_{4}$ $=$ $(mass of S)$ + $4 (mass of O)$

Step 2

Fill in the atomic masses from the periodic table.

mass of $1$ mole of $S O_{4}$ $=$ $(32.06999969)$ + $4 (16)$

Step 3

Simplify the result.

Multiply $4$ by $16$ .

mass of $1$ mole of $S O_{4} = 32.06999969 + 64 g$

Add $32.06999969$ and $64$ .

mass of $1$ mole of $S O_{4} = 96.06999969 g$

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.

$\frac{96.06999969 g}{22.4 L}$

Step 6

Factor $96.06999969$ out of $96.06999969 g$ .

$\frac{96.06999969 (g)}{22.4 L}$

Step 7

Factor $22.4$ out of $22.4 L$ .

$\frac{96.06999969 (g)}{22.4 (L)}$

Step 8

Separate fractions.

$\frac{96.06999969}{22.4} \cdot \frac{g}{L}$

Step 9

Divide $96.06999969$ by $22.4$ .

$4.28883927 \frac{g}{L}$

Step 10

Combine $4.28883927$ and $\frac{g}{L}$ .

$\frac{4.28883927 g}{L}$

Find the Density at STP SO_4

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