Question

A chemist measures the amount of bromine liquid produced during an experiment. She finds that 14.4 g of of bromine liquid is produced. Calculate the number of moles of bromine liquid produced.

Answer 1

The number of moles of bromine liquid produced is 0.09.

Step-by-step explanation:

Moles =
`\frac{\text{Mass of compound}}{\text{Molar mass of compound}}`

Mass of bromine liquid = 14.4 g

Molecular mass of bromine liquid
`Br_2`= 160 g/mol

Moles of bromine liquid =
`(14.4 g)/(160 g/mol)=0.09 mol`

The number of moles of bromine liquid produced is 0.09.

Answer 2

0.09 moles of Br₂

Step-by-step explanation:

Bromine liquid it refers at Br₂ molecule which is liquid at room temperature.

Now to calculate the number of moles we use the following formula:

number of moles = mass (g) / molecular mass (g/mol)

For Br₂ molecule we have:

number of moles = 14.4 / 160 = 0.09 moles of Br₂