【Daily Question】March 31, 2018: Participate for +2 wealth； +3 to +10 wealth for correct answers
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Fill-in-the-blank: When determining the boiling range of oil products, the reasons for an increase in the volume of the distillate are: ① The liquid level was above the 100 ml mark when sampling the oil; ② The oil temperature was ( ) higher than room temperature when sampling the oil; ③ The condenser was not cleaned properly before measurement； ④The condensate water from the condenser flows into the measuring cylinder; ⑤ the distillation flask has not been ( ). Low, dry
When determining the distillation range of oil products, the reasons for an increase in the volume of the distilled liquid are: ① The liquid level was above the 100 ml mark when sampling the oil; ② The oil temperature was lower than room temperature when sampling; ③ The condenser was not cleaned properly before measurement； ④The condensate water from the condenser flows into the measuring cylinder; ⑤ the distillation flask has not been (dried).