[Blue]

What is the volume of H₂ (normal conditions) which gets released when we add 4.6g of elementary Na into 100g of pure ethanol?

[Borek]

Start with the reaction equation.

Convert everything to moles.

[Blue]

Start with the reaction equation.

Convert everything to moles.

I did that, but I don't know what to do with Na? I'm a bit confused

[Archer]

With Sodium you only have to worry about the atomic mass of sodium which is 23.

You will need to work out which reactant (Na or EtOH) is in excess

[Blue]

With Sodium you only have to worry about the atomic mass of sodium which is 23.

You will need to work out which reactant (Na or EtOH) is in excess

I found that C₂H₅OH is in excess, so Na is the limiting reagent. Therefore, n(H₂) =0.1mol and V= n*Vm=0.1*22.4=2.24dm³, Thank you a lot

[Borek]

Actually exact answer depends on what it is meant by the "normal conditions".

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