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a) *mAl=n.M=0,9.27=24,3 (g)
* VAl=m/D=24,3/2,7=9cm3=0,009 lít
b) * mCl2=n.M=1,25.71=88,75 (g)
* VCl2=n.22,4=1,25.22,4=28 lít
c) * mNH3=n.M=0,86.17=14,62 (g)
*VNH3=n.22,4=0,86.22,4=19,264 (lít)
huyền trân Mình sửa lại nha SORRY
a) \(\left\{{}\begin{matrix}m_{Al}=27.0,9=24,3\left(g\right)\\V_{Al}=\dfrac{24,3}{2,7}=9\left(cm^3\right)=0,009\left(l\right)\end{matrix}\right.\)
b) \(\left\{{}\begin{matrix}m_{Cl2}=71.1,25=88,75\left(g\right)\\V_{Cl2}=22,4.1,25=28\left(g\right)\end{matrix}\right.\)
c) \(\left\{{}\begin{matrix}m_{NH3}=17.0,86=14,62\left(mol\right)\\V_{NH3}=22,4.0,86=19,264\left(l\right)\end{matrix}\right.\)
a) nCO2=[(9.1023)/(6.1023)]=1,5(mol)
=> mCO2=1,5.44=66(g)
V(CO2,đktc)=1,5.22,4=33,6(l)
b) nH2=4/2=2(mol)
N(H2)=2.6.1023=12.1023(phân tử)
V(H2,đktc)=2.22,4=44,8(l)
c) N(CO2)=0,5.6.1023=3.1023(phân tử)
V(CO2,đktc)=0,5.22,4=11,2(l)
mCO2=0,5.44=22(g)
d) nN2=2,24/22,4=0,1(mol)
mN2=0,1.28=2,8(g)
N(N2)=0,1.1023.6=6.1022 (phân tử)
e) nCu=[(3,01.1023)/(6,02.1023)]=0,5(mol)
mCu=0,5.64=32(g)
Mà sao tính thể tích ta :3
a) \(n_{CuO}=\dfrac{4}{80}=0,05\left(mol\right)\)
b) \(V_{CO_2}=0,2.22,4=4,48\left(l\right)\)
c) \(M_A=1,172.29=34\left(g/mol\right)\)
\(n_A=\dfrac{33,6}{22,4}=1,5\left(mol\right)\)
=> mA = 1,5.34 = 51(g)
mMg = 0,5.24 = 12 gam
VSO2 = n.22,4 = 0,25.22,4 = 5,6 lít
nN2 = \(\dfrac{16,8}{22,4}\)= 0,75 mol , nO2 = \(\dfrac{5,6}{22,4}\)= 0,25 mol
=> m(N2 + O2 ) = 0,75.28 + 0,25.32 = 29 gam
\(a.V_{CO_2\left(dktc\right)}=0,25.22,4=5,6\left(l\right)\)
\(b.m_{Al_2O_3}=0,5.160=80\left(g\right)\)
\(Coi: n_{Cl_2} = 1(mol) \to n_{O_2} = 2(mol)\\ \%V_{Cl_2} = \dfrac{1}{1+2}.100\% = 33,33\%\\ \%V_{O_2} = 100\% -33,33\% = 66,67\%\\ M_A = \dfrac{1.71+2.32}{1+2}=45(g/mol)\\ d_{A/H_2} = \dfrac{45}{2} = 22,5\)
\(\text{Trong 6,72 lít khí A : }m_A = 45.\dfrac{6,72}{22,4}=13,5(gam)\)
a;
mAl=27.0,9=24,3(g)
VAl=24,3:2,7=9(cm3)
b;
mCl2=71.1,25=88,75(g)
VCl2=22,4.1,25=28(lít)
c;
mNH3=0,86.17=14,62(g)
VNH3=0,86.22,4=19,264(lít)