a) \(m_{H_2O}=2,5.18=45\left(g\right)\)
b) \(n_{H_2}=\dfrac{1,68}{22,4}=0,075\left(mol\right)\) => mH2 = 0,075.2 = 0,15(g)
\(a.m_{H_2O}=2,5.18=45\left(g\right)\)
\(b.n_{H_2}=\dfrac{1,68}{22,4}=0,075\left(mol\right)\)
\(m_{H_2}=2.0,075=0,15\left(g\right)\)