a) Theo lần lượt nha
tỉ khối với N2:
+ 2,2/28=0,079
+ 857/28=30,6
+ 2,07/28=0,074
b) Tỉ khối vs kk
+ 2,45/29=0,084
+ 0,965/29=0,332
+ 2,2/29=0,076
a,
\(d_{\frac{khí}{N2}}=2\Rightarrow m_{khí}=2.28=56\left(g\right)\)
\(d_{\frac{khí}{N2}}=2,857\Rightarrow m_{khí}=2,857.28=79,996\left(g\right)\)
\(d_{\frac{khí}{N2}}=2,07\Rightarrow m_{khí}=2,07.28=57,96\left(g\right)\)
b,
\(d_{\frac{khí}{kk}}=2,45\Rightarrow m_{khí}=2,45.29=71,05\left(g\right)\)
\(d_{\frac{khí}{kk}}=0,965\Rightarrow m_{khí}=0,965.29=27,985\left(g\right)\)
\(d_{\frac{khí}{kk}}=2,2\Rightarrow m_{khí}=2,2.29=63,8\left(g\right)\)
