a) Theo đề ra: \(\left\{{}\begin{matrix}m_{O2}=0,1\cdot32=3,2\left(gam\right)\\m_{N2}=28\cdot0,25=7\left(gam\right)\\m_{CO}=0,15\cdot28=4,2\left(gam\right)\end{matrix}\right.\)
=> \(\overline{M_{tb}}=\dfrac{m_{O2}+m_{N2}+m_{CO}}{n_{O2}+n_{N2}+n_{CO}}=\dfrac{3,2+7+4,2}{0,1+0,25+0,15}=28,8\left(\dfrac{g}{mol}\right)\) b) dhỗn hợp / H2 = \(\dfrac{28,8}{2}=14,4\)
Vậy ....
a) \(\overline{M_{tb}}=\frac{m_{O_2}+m_{N_2}+m_{CO}}{n_{O_2}+n_{N_2}+n_{CO}}\\ =\frac{0,1.32+0,25.28+0,15.28}{0,1+0,25+0,15}\\ =\frac{14,4}{0,5}=28,8\left(\frac{g}{mol}\right)\)
b) \(d_{\frac{hỗnhợp}{KK}}=\frac{28,8}{29}\approx0,993\\ d_{\frac{hỗnhợp}{H_2}}=\frac{28,8}{2}=14,4\)
a) Theo đề ra: ⎧⎪⎨⎪⎩mO2=0,1⋅32=3,2(gam)mN2=28⋅0,25=7(gam)mCO=0,15⋅28=4,2(gam){mO2=0,1⋅32=3,2(gam)mN2=28⋅0,25=7(gam)mCO=0,15⋅28=4,2(gam)
=> 28,82=14,428,82=14,4
Vậy M trung bình là 28.8 ,tỉ khối là 14.4