Question

How many moles per dm³ of gaseous carbon dioxide are there if 4.4g occupies 500cm³?


( I need answer with full working)​

Answer 1

Answer:

0.2moles/d3

Explanation:

1 mole of CO2 = 12 + 16 + 16 = 44g

x moles =                                 4.4g

x = (4.4 x 1) / 44 = 0.1 moles

0.1 moles = 4.4g = 500cm3 = 0.5dm3

y moles =                                  1.0 dm3

y = (1 x 0.1) / 0.5 = 0.2 moles

therefore 0.2 moles in 1dm3