Question

cho 13g kem tac dung vua du vs dd axit clohidric

a) viet Phuong trinh hoa hoc

b) tinh the tich dd axit clohidric

cho bt

Zn : 65

Cl : 35,5

H :1

Answer 1

zn +2hcl\(\rightarrow\)zncl_2+h2

n_{zn=\(\frac{13}{65}\)=0,2mol}

theo phưong trinh hoa hoc

n_hcl=2*0,2=0,4 mol

\(\Rightarrow\)v_hcl=0,4*22,4=8,96 lit

Answer 2

a) PTHH: Zn + 2HCl \(\rightarrow\) ZnCl₂ + H₂\(\uparrow\)
b) n_Zn = \(\frac{13}{65}=0,2\left(mol\right)\)