Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
\(a,n_{CO_2}=\dfrac{m_{CO_2}}{M_{CO_2}}=\dfrac{11}{44}=0,25\left(mol\right)\\ b,n_{H_2}=\dfrac{9.10^{23}}{6.10^{23}}=1,5\left(mol\right)\\ V_{H_2\left(đktc\right)}=1,5.22,4=33,6\left(l\right)\)
\(m_{CO_2}=12+16\cdot2=44\)
Số mol của CO2
\(n=\frac{m}{M}=\frac{11}{44}=0,25\)(mol)
Số mol của H2
\(n=\frac{sophantu}{6.10^{23}}=\frac{9.10^{23}}{6.10^{23}}=1,5\left(mol\right)\)
\(\Rightarrow\) VH2(đktc) =n.22,4=1,5.22,4=33,6(lít)
- nCO2 = 11 / 44 = 0,25 (mol)
- nH2 = \(\frac{9.10^{23}}{6.10^{23}}=1,5\left(mol\right)\)
=> VH2(đktc) = 1,5 x 22,4 = 33,6 lít
+ \(M_{CO_2}=12+16.2=44\left(\dfrac{g}{mol}\right)\)
\(n_{CO_2}=\dfrac{m}{M}=\dfrac{11}{44}=0,25mol\)
+ \(n_{H_2}=\dfrac{9.10^{23}}{6.10^{23}}=1,5mol\)
\(V_{H_2\left(đktc\right)}=n.22,4=1,5.22,4=33,6\left(l\right)\)
\(a.\)
\(n_{CO_2}=\dfrac{11}{44}=0.25\left(mol\right)\)
\(b.\)
\(n_{H_2}=\dfrac{9\cdot10^{23}}{6\cdot10^{23}}=1.5\left(mol\right)\)
\(V_{H_2}=1.5\cdot22.4=33.6\left(l\right)\)
nSO2=m:M=6,4:64=0,1(mol)
VSO2=n.22,4=0,1.22,4=2,24(l)
nCO2=m:M=4,4:44=0,1(mol)
VCO2=n.22,4=0,1.22,4=2,24(l)
nH2=S:6.1023=1,2.1023:6.1023=0,2(mol)
VH2=n.22,4=0,2.22,4=4,48(l)
\(a.n_{SO_2}=\dfrac{m}{M}=\dfrac{6,4}{64}=0,1\left(mol\right)\\ n_{CO_2}=\dfrac{m}{M}=\dfrac{4,4}{44}=0,1\left(mol\right)\\ \Rightarrow n_{hh}=n_{SO_2}+n_{CO_2}=0,1+0,1=0,2\left(mol\right)\\ \Rightarrow V_{hh}=n.22,4=0,2.22,4=4,48\left(l\right)\)
\(n_{H_2}=\dfrac{1,2.10^{23}}{6.10^{23}}=0,2\left(mol\right)\Rightarrow V_{H_2}=n.22,4=0,2.22,4=4,48\left(l\right)\)
-Ta có:
\(m_{CO_2}=16+12,2=44\)(g)
\(n_{CO_2}=\dfrac{22}{44}=0,5\left(mol\right)\)
-\(n_{H_2}=\dfrac{3.10^{23}}{6.10^{23}}=0,5\left(mol\right)\)
\(V_{H_2}=0,5.22,4=11,2\left(l\right)\)
Câu 1:
\(d_{N_2/kk}=\dfrac{28}{29}\approx 0,97\\ d_{SO_2/kk}=\dfrac{80}{29}\approx 2,76\\ d_{NO_2/kk}=\dfrac{46}{29}\approx 1,59\)
Câu 2:
\(n_{CO_2}=\dfrac{0,44}{44}=0,01(mol);n_{N_2}=\dfrac{6.10^{23}}{6.10^{23}}=1(mol)\\ \Rightarrow V_{hh}=22,4(0,01+0,1+1)=24,864(l)\)
Câu 1:
\(d_{N_2/kk}=\dfrac{28}{29}=0,966\)
\(d_{SO_2/kk}=\dfrac{64}{29}=2,207\)
\(d_{NO_2/kk}=\dfrac{46}{29}=1,586\)
Câu 2:
\(n_{CO_2}=\dfrac{0,44}{44}=0,01\left(mol\right)\)
\(n_{N_2}=\dfrac{6.10^{23}}{6.10^{23}}=1\left(mol\right)\)
=> Vhh = (0,01+0,1+1).22,4 = 24,864(l)
a) $n_{CO_2} = \dfrac{11}{44} = 0,25(mol)$
b) $n_{H_2} = \dfrac{9.10^{23}}{6.10^{23}} = 1,5(mol)$
$V_{H_2} = 1,5.22,4 = 33,6(lít)$
c) $n_{SO_2} = \dfrac{5,6}{64} = 0,0875(mol)$
$V_{SO_2} = 0,0875.22,4 = 1,96(lít)$