a) PTHH: \(2CH_3COOH+Mg\rightarrow\left(CH_3COO\right)_2Mg+H_2\uparrow\)
Ta có: \(n_{Mg}=\dfrac{2,4}{24}=0,1\left(mol\right)=n_{H_2}\) \(\Rightarrow V_{H_2}=0,1\cdot22,4=2,24\left(l\right)\)
b) Theo PTHH: \(n_{CH_3COOH}=2n_{Mg}=0,2\left(mol\right)\)
\(\Rightarrow V_{CH_3COOH}=\dfrac{0,2}{0,1}=2\left(l\right)\)
c) Theo PTHH: \(n_{\left(CH_3COO\right)_2Mg}=0,1\left(mol\right)\) \(\Rightarrow m_{\left(CH_3COO\right)_2Mg}=0,1\cdot142=14,2\left(g\right)\)
*Bạn nên bổ sung thêm khối lượng riêng của dd axit
a)nMg=2,4/24=0,1 mol
2Mg + 2CH3COOH --> 2CH3COOMg + H2
0,1 0,1 0,05 mol
=> vH2 = 0,05 * 22,4 =1,12 lít
b)m CH3COOH = 0,1 * 60=6 g
c)mCH3COOMg=0,1 * 83 = 8,3 g
VCH3COOH = 0,1/0,1=1 lít
V dd sau = 2,4 + 1 - 0,05*2=3,3 l
C M = 0,1/3,3=0,03M