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a, \(V_{hh}=\left(0,5+1,5+1+2\right).22,4=112\left(l\right)\)
b,\(m_{hh}=m_{H2}+m_{O2}+m_{CO2}+m_{N2}\)
\(=0,5.21,5.32+1.44+2.28=149\left(g\right)\)
c,Tổng số phân tử
\(=\left(0,5+1,5+1+1\right).6.10^{23}=30.10^{23}\)
\(a.n_{H_2}=\dfrac{1,2.10^{23}}{6.10^{23}}=0,2\left(mol\right)\\ n_{SO_2}=\dfrac{6,4}{64}=0,1\left(mol\right)\\ V_X=\left(1,5+2,5+0,2+0,1\right).22,4=96,32\left(l\right)\\b. m_X=1,5.32+2,5.28+0,2.2+6,4=124,8\left(g\right)\)
a.nH2=1,2.10236.1023=0,2(mol)nSO2=6,464=0,1(mol)VX=(1,5+2,5+0,2+0,1).22,4=96,32(l)b.mX=1,5.32+2,5.28+0,2.2+6,4=124,8(g)
Bài 1:
a) \(V_{khí}=\left(0,2+0,5+0,35\right)\cdot22,4=23,52\left(l\right)\)
b) \(m_{khí}=0,2\cdot64+0,5\cdot28+0,35\cdot28=36,6\left(g\right)\)
\(a.n_{CO_2}=\dfrac{4,4}{44}=0,1\left(mol\right);n_{O_2}=\dfrac{0,6.10^{23}}{6.10^{23}}=0,1\left(mol\right)\\ V_{hh}=\left(0,5+1,5+0,1+0,1\right).22,4=49,28\left(l\right)\\ b.m_{hh}=0,5.28+1,5.2+4,4+0,1.32=24,6\left(g\right)\)
a, VN\(_2\) ( đktc ) = 0,5 . 22,4 = 11,2 lít
VH\(_2\) = 1,5 . 22,4 = 33,6 lít
\(n_{CO_2}=\dfrac{4,4}{44}=0,1\) ( mol )
=> \(V_{CO_2}=0,1.22,4=2,24\) ( lít )
\(n_{O_2}=\dfrac{0,6.10^{23}}{6.10^{23}}=0,1\) ( mol )
=> V\(O_2\) = 0,1 .22,4 = 2,24 lít
=> Vhh = 11,2 + 33,6 + 2,24 + 2,24 = 49,28 lít
b, \(m_{N_2}=0,5.28=14\) ( g )
\(m_{H_2}=1,5.2=3\) ( g )
\(m_{CO_2}=0,1.44=4,4\) ( g )
\(m_{O_2}=0,1.32=3,2\) (g)
\(m_{hh}=14+3+4,4+3,2=24,6\) ( g )
Bài 1
MXH3=0,5.0,5.34=17
-->X+3=17
--->X=14(N)
Vậy X là Nito
Bài 2
a) Ta có
V O2=0,8.22,4=17,92(l)
VH2=1.22,4=22,4(l)
V CO2=0,2.22,4=4,48(l)
V CH4=2.22,4=44,8(l)
\(\sum V_{hh}=\)17,92+22,4+4,48+44,8=89,6(l)
%V O2=17,92/89,6.100%=20%
%V H2=22,4/89,6.100%=25%
%V CO2=4,48/89,6.100%=5%
%VCH4=100-20-25-5=50%
b)
m O2=0,8.32=25,6(g)
mH2=1.2=2(g)
m CO2=0,2.44=8,8(g)
mCH4=2.16=32(g)
\(\sum m_{hh}=^{ }\)25,6+2+8,8+32=68,4(g)
%m O2=25,6/68,4.100%=37%
%m H2=2/68,4 .100%=3%
%m CO2=8,8./68,4.100%=13%
%m CH4=100-37-3-13=47%
c) Phân tử khối trung bình=\(\frac{68,4}{0,8+1+0,2+2}=17,1\)
d)\(d_{\frac{X}{H2_{ }}_{ }}=\frac{17,1}{2}=8,55\)
