Question

Calculate density of H2 at STP.​

Answer 1

The answer is 0.0899 kg/m3 at STP.

Another way to find is using ideal gas equation, which is.

PV=nRT. ...

Its better take SI units while calculating. ...

As you know Density(rho) = Mass/Volume (m/V), you can write as follows:

P(V/m)=nRT/m (dividing both sides by m) ...

Hence substituting values in above equation we get.