\(nZn=\dfrac{6,5}{65}=0,1mol\)
PTHH:
\(Zn+2HCl\rightarrow ZnCl_2+H_2\uparrow\)
0,1--->0,2------->0,2------>0,1
a, \(VH_2=0,1.22,4=2,24lít\)
b, \(mHCl=0,2.36,5=3,65g\)
c, cách 1:
\(mZnCl_2=0,2.136=27,2gam\)
cách 2 :
\(mH_2=0,1.2=0,2gam\)
BTKL: mZn+mHCl=mZnCl2+H2
6,5+3,65 =mZnCl2+0,2
sao cái cách 2 btkl mình cs tính kq mà s nhìn nó lạ lắm
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a) \(n_{Zn}=\dfrac{6,5}{65}=0,1\left(mol\right)\)
PTHH : Zn + 2HCl -> ZnCl2 + H2
0,1 0,2 0,1 0,1
\(V_{H_2}=0,1.22,4=2,24\left(l\right)\)
b) \(m_{HCl}=0,2.36,5=7,3\left(g\right)\)
c) \(m_{ZnCl_2}=0,1.136=13,6\left(g\right)\)