Giúp mk vs ạ. Mk đg cần gấp. Cảm on mn

`(a)\ Zn+H_2SO_4->ZnSO_4+H_2`

`(b)`

`100mL=0,1L`

`->n_{H_2SO_4}=0,1.2=0,2(mol)`

Theo PT: `n_{Zn}=n_{H_2}=n_{H_2SO_4}=0,2(mol)`

`m=m_{Zn}=0,2.65=13(g)`

`V=V_{H_2(đkc)}=0,2.24,79=4,958(L)`

`(c)`

`m_{dd\ H_2SO_4}=100.1,2=120(g)`

`->m_{dd\ spu}=13+120-0,2.2=132,6(g)`

Theo PT: `n_{ZnSO_4}=n_{Zn}=0,2(mol)`

`->C\%_{ZnSO_4}={0,2.161}/{132,6}.100\%\approx 24,28\%`