cứu tui mn ơiiiiiiiiiiiiiiiii

tg mụn nhất là tối nay nha mn

\(a)n_{CuSO_4}=\dfrac{16}{160}=0,1mol\\ b)C_{M\left(CuSO_4\right)}=\dfrac{0,1}{0,25}=0,4M\)

\(n_{CuSO_4}=\dfrac{16}{160}=0,1\left(mol\right)\)

\(\Rightarrow C_{M_{CuSO_4}}=\dfrac{0,1}{0,4}=0,25\left(M\right)\)

a) \(n_{CuSO_4}=\dfrac{16}{160}=0,1\left(mol\right)\)

\(C_{M_{ddCuSO_4}}=\dfrac{0,1}{0,2}=0,5M\)

b) \(m_{H_2SO_4}=\dfrac{150.14}{100}=21\left(g\right)\)

a)

$n_{CuSO_4} = \dfrac{16}{160} = 0,1(mol)$
$C_{M_{CuSO_4}} = \dfrac{0,1}{0,2} = 0,5M$

b)

$m_{H_2SO_4} = 150.14\% = 21(gam)$

n=\(\dfrac{m}{M}\)

nS = \(\dfrac{16}{32}\)= 0,5 mol

nAl = \(\dfrac{5,4}{27}\)= 0,2 mol

nFe₃O₄  = \(\dfrac{6,96}{232}\)= 0,03 mol

nCO₂ = \(\dfrac{4,4}{44}\)= 0,1 mol

a) $CuSO_4 + 2NaOH \to Cu(OH)_2 + Na_2SO_4$

b) $n_{Cu(OH)_2} = n_{CuSO_4} = \dfrac{16}{160} = 0,1(mol)$
$m_{Cu(OH)_2} = 0,1.98 = 9,8(gam)$

c) $n_{NaOH} = 2n_{CuSO_4} = 0,2(mol) \Rightarrow C_{M_{NaOH}} = \dfrac{0,2}{0,1} = 2M$

PTHH: \(CuSO_4+2NaOH\rightarrow Na_2SO_4+Cu\left(OH\right)_2\downarrow\)

Ta có: \(n_{CuSO_4}=\dfrac{16}{160}=0,1\left(mol\right)\)

\(\Rightarrow\left\{{}\begin{matrix}n_{NaOH}=0,2\left(mol\right)\\n_{Cu\left(OH\right)_2}=0,1\left(mol\right)\end{matrix}\right.\) \(\Rightarrow\left\{{}\begin{matrix}C_{M_{NaOH}}=\dfrac{0,2}{0,1}=2\left(M\right)\\m_{Cu\left(OH\right)_2}=0,1\cdot98=9,8\left(g\right)\end{matrix}\right.\)

\(C_{\%CuSO_4}=\dfrac{16}{200}\cdot100=8\%\)

S_CuSO4 = \(\frac{16}{50}\)= 32 (g/100g H2O)
C%_CuSO4 = \(\frac{16}{16+50}\)*100% ≃ 24,24%
C_{M CuSO4} = ...................... Cơ mà đề có cho thể tích dung dịch hay khối lượng riêng dung dịch đâu mà tính???

n_CuSO4=\(\dfrac{16}{160}=0,1mol\)