Question

Mik cần gấp ạ

Answer 1

PTHH: Mg + 2HCl ---> MgCl₂ + H₂

Ta có: \(n_{Mg}=\dfrac{48}{24}=2\left(mol\right)\)

Theo PT: \(n_{H_2}=n_{Mg}=2\left(mol\right)\)

=> \(V_{H_2}=2.22,4=44,8\left(lít\right)\)

Theo PT: \(n_{HCl}=2.n_{Mg}=2.2=4\left(mol\right)\)

=> \(m_{HCl}=4.36,5=146\left(g\right)\)