Question

What volume will 30 g of carbon monoxide, CO, fill at STP?

Answer 1

24dm³

Step-by-step explanation:

Given parameters:

Mass of CO = 30g

Unknown:

Volume of CO at STP = ?

Solution:

To solve this problem, we need to find the number of moles of CO in the given mass.

Number of moles of CO =
`(mass)/(molar mass)`

Molar mass of CO = 12 + 16 = 28g/mol

Number of moles =
`(30)/(28)` = 1.07moles

Now;

1 mole of a gas occupies 22.4dm³ volume at STP

1.07moles will occupy 1.07 x 22.4 = 24dm³