0722. Solving a chemistry problem
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0722. Solving a chemistry problem
235. Compare the number of HETP in a chromatographic column filled with a modified zeolite and in a column filled with silica gel if the column lengths are 4.5 m and 3.5 m, respectively; methane retention time 45 mm and 55 mm; the width of its peaks on the indicated sorbents is 2 and 3 cm, respectively.
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