\(BaCl_2+H_2SO_4\rightarrow BaSO_4\downarrow+2HCl\)
1 1 1 2
0.05 0,1
0,05 0,05 0,05
Đổi 50 ml=0,05 l ; 100ml=0,1l
⇒ \(n_{BaCl_2}=C_M.V=1.0,05=0,05\left(mol\right)\)
⇒\(n_{H_2SO_4}=C_M.V=1.0,1=0,1\left(mol\right)\)
Lập tỉ lệ:
\(n_{BaCl_2}=\frac{0,05}{1}=0,05< n_{H_2SO_4}=\frac{0,1}{1}=0,1\left(mol\right)\)
\(\)\(\rightarrow n_{H_2SO_4dư}\)
\(\rightarrow n_{BaSO_4}\) tính theo \(n_{BaCl_2}=0,05\left(mol\right)\)
\(\Rightarrow m_{BaSO_4}=n.M=0,05.\left(137+32+16.4\right)=11,65\left(g\right)\)
Vậy a=11,65(g)
\(n_{BaCl_2}=1.0,05=0,05\left(mol\right);n_{H_2SO_4}=1.0,1=0,1\left(mol\right)\)
\(BaCl_2+H_2SO_4\rightarrow BaSO_4+2HCl\)
\(TL:\frac{0,05}{1}< \frac{0,1}{1}\rightarrow H_2SO_4.du\)
\(m_{kt}=a=0,05.233=11,65\left(g\right)\)
nBaCl2 = 0.05 mol
nH2SO4 = 0.1 mol
BaCl2 + H2SO4 --> BaSO4 + 2HCl
Bđ: 0.05_____0.1
Pư: 0.05_____0.05_____0.05
Kt: 0________0.05_____0.05
mBaSO4 = a = 0.05*197=9.85 g
nBaCl2 = 0.05 mol
nH2SO4 = 0.1 mol
BaCl2 + H2SO4 --> BaSO4 + 2HCl
Bđ: 0.05_____0.1
Pư: 0.05_____0.05_____0.05
Kt: 0________0.05_____0.05
mBaSO4 = a = 0.05*233=11.65 g
Số mol BaCl2:
...............n=0,05(mol)
nH2SO4=0,1(mol)
BaCl2 + H2SO4 --> BaSO4 + 2HCl
Có: 0,05<0,1=> H2SO4 dư
=> Tính theo BaCl2
BaCl2 + H2SO4 --> BaSO4 + 2HCl
0,05...........................0,05(mol)
a=0,05.233=11,65(g)
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