Leny

I did an experiment with a sand sample which contains fine metallic aluminium and I wanted to measure how much of this metallic aluminium is in the sample. I used the NaOH solution in order to let react the aluminium and collect the H2. From the H2 amount...

Must new substances be formed when you observe a chemical property?Explain.

Thanks, are these equations correct? M (H2 in mol)=(V(H2 in ml)/1000)/22.4) then M (Al in mol)=2/3V(H2 in mol) after M (Al in g) = M (Al in mol) x 27

Thanks a lot.