a)

$AgNO_3 + HCl \to AgCl + HNO_3$
Theo PTHH : 

$n_{AgCl} = n_{HCl} = n_{AgNO_3} = \dfrac{340.10\%}{170} =0,2(mol)$

$m_{dd\ HCl} = \dfrac{0,2.36,5}{7,3\%} = 100(gam)$

b)

$m_{AgCl} = 0,2.143,5 = 28,7(gam)$

c)

$m_{dd\ sau\ pư} = 340 + 100 -28,7 = 411,3(gam)$

$n_{HNO_3} = n_{AgNO_3} = 0,2(mol)$
$\Rightarrow C\%_{HNO_3} = \dfrac{0,2.63}{411,3}.100\% = 3,06\%$

\(HCl + AgNO_3 \to AgCl + HNO_3\\ n_{HCl} = n_{AgCl} = \dfrac{14,35}{143,5} = 0,1(mol)\\ \Rightarrow C\%_{HCl} = \dfrac{0,1.36,5}{10}.100\% = 36,5\%\)

\(n_{H_2}=\dfrac{8,96}{22,4}=0,4\left(mol\right)\\ PTHH:2Al+6HCl\rightarrow2AlCl_3+3H_2\\ Fe+2HCl\rightarrow FeCl_2+3H_2\\ Đặt:n_{Al}=a\left(mol\right);n_{Fe}=b\left(mol\right)\left(a,b>0\right)\\ \Rightarrow\left\{{}\begin{matrix}27a+56b=11\\1,5a+b=0,4\end{matrix}\right.\Leftrightarrow\left\{{}\begin{matrix}a=0,2\\b=0,1\end{matrix}\right.\\ a,n_{HCl}=2.n_{H_2}=2.0,4=0,8\left(mol\right)\\ \Rightarrow V_{ddHCl}=\dfrac{0,8}{8}=0,1\left(l\right)\\ b,FeCl_2+2AgNO_3\rightarrow Fe\left(NO_3\right)_2+2AgCl\downarrow\\ AlCl_3+3AgNO_3\rightarrow Al\left(NO_3\right)_3+3AgCl\downarrow\\ n_{AgCl}=n_{AgNO_3}=3.n_{AlCl_3}+2.n_{FeCl_2}=3.a+2.b=3.0,2+2.0,1=0,8\left(mol\right)\\ \Rightarrow a=\dfrac{170.0,8}{250}.100=54,4\%\\ b=m_{\downarrow}=m_{AgCl}=0,8.143,5=114,8\left(g\right)\)

a, PT: \(Mg+2HCl\rightarrow MgCl_2+H_2\)

\(MgCl_2+2NaOH\rightarrow2NaCl+Mg\left(OH\right)_{2\downarrow}\)

\(Mg\left(OH\right)_2\underrightarrow{t^o}MgO+H_2O\)

b, Ta có: \(n_{Mg}=\dfrac{9,6}{24}=0,4\left(mol\right)\)

Theo PT: \(n_{HCl}=2n_{Mg}=0,8\left(mol\right)\)

\(\Rightarrow C_{M_{HCl}}=\dfrac{0,8}{0,2}=4\left(M\right)\)

c, Theo PT: \(n_{MgO}=n_{Mg}=0,4\left(mol\right)\)

\(\Rightarrow m_{MgO}=0,4.40=16\left(g\right)\)

a , \(nFe=\dfrac{11,2}{56}=0,2\left(mol\right)\)

, pthh:

\(Fe+2HCl\rightarrow FeCl_2+H_2\uparrow\)

1mol   2mol       1mol      1mol

0,2     0,4              0,2       0,2

\(FeCl_2+2NaOH\rightarrow Fe\left(OH\right)_2\downarrow+2NaCl\)

1mol        2mol           1mol              2mol

0,2            0,4               0,2            0,4

b, \(mFe\left(OH\right)_2=0,2.90=18\left(gam\right)\)

a , 

n_glu=0,3 .suy ra:n_ag=0,6    m_ag=b=64,8

n_agno3=n_ag+n_agcl=0,6+0,15=0,75     m_agno3=127,5    a=(127,5/937,5).100=13,6

\(n_{Fe}=\dfrac{6,5}{56}=\dfrac{13}{112}mol\)

\(m_{CH_3COOH}=\dfrac{90\cdot20\%}{100\%}=18g\Rightarrow n_{CH_3COOH}=0,3mol\)

\(Fe+2CH_3COOH\rightarrow\left(CH_3COO\right)_2Fe+H_2\uparrow\)

\(\dfrac{13}{112}\)       0,3                       0                        0

\(\dfrac{13}{112}\)       \(\dfrac{13}{56}\)                       \(\dfrac{13}{112}\)                   \(\dfrac{13}{112}\)

   0       \(\dfrac{19}{280}\)                      \(\dfrac{13}{112}\)                  \(\dfrac{13}{112}\)

a)\(m_{\left(CH_3COO\right)_2Fe}=\dfrac{13}{112}\cdot174=20,2g\)

\(m_{H_2}=\dfrac{13}{112}\cdot2=\dfrac{13}{56}g\)

\(m_{dd\left(CH_3COO\right)_2Fe}=6,5+90-\dfrac{13}{56}=96,27g\)

\(C\%=\dfrac{20,2}{96,27}\cdot100\%=20,98\%\)

a. PTHH: AgNO₃ + HCl ---> AgCl↓ + HNO₃

b. Ta có: \(n_{AgNO_3}=\dfrac{42,5}{170}=0,25\left(mol\right)\)

Theo PT: \(n_{AgCl}=n_{AgNO_3}=0,25\left(mol\right)\)

=> \(m_{AgCl}=0,25.143,5=35,875\left(g\right)\)

c. Theo PT: \(n_{HCl}=n_{AgCl}=0,25\left(mol\right)\)

Đổi 100ml = 0,1 lít

=> \(C_{M_{HCl}}=\dfrac{0,25}{0,1}=2,5M\)

Của dd axit nha

nAgNO3= (100.17%)/170=0,1(mol)

nHCl= (300.3,65%)/36,5=0,3(mol)

a) PTHH: AgNO3 + HCl -> AgCl + HNO3

Ta có: 0,1/1 < 0,3/1

=> AgNO3 hết, HCl dư, tính theo nAgNO3

Ta có: nAgCl= nHNO3= nHCl(p.ứ)= nAgNO3= 0,1(mol)

=>m(kt)=mAgCl= 143,5.0,1= 14,35(g)

b) mHCl(dư)= (0,3- 0,1).36,5=7,3(g)

mHNO3= 63.0,1= 6,3(g)

mddsau= mddAgNO3 + mddHCl - mAgCl= 100+300- 14,35= 385,65(g)

=>C%ddHCl(dư)= (7,3/385,65).100= 1,893%

C%ddHNO3= (6,3/385,65).100=1,634%