ét ô ét hóa nha mn.!!!!!!!

$\rm a)d_{N_2/CH_4}=M_{N_2}/M_{CH_4}=28/16=1,75\\b)d_{CO_2/O_2}=M_{CO_2}/M_{O_2}=44/32=1,375\\c)d_{SO_2/kk}=M_{SO_2}/M_{kk}=64/29≈2,207\\d)d_{O_2/kk}=M_{O_2}/M_{kk}=32/29≈1,103$

a)`d_{N_2//CH_4} = {28}/{16} = 1,75`

b)`d_{CO_2//O_2} = {44}/{32} = 1,375`

c)`d_{SO_2//KK} = {64}/{29}` $\approx$ `2,207`

d)`d_{O_2//kk} = {32}/{29}` $\approx$ `1,103`

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Công thức áp dụng:

`d_{khí A// khí B} = {M_A}/{M_B}`