怎样测食用油密度
只用一个空瓶 一个天平 水和油
急 瓶子没刻度 天平有砝码
人气：332 ℃ 时间：2019-10-03 22:48:04
解答
先把空瓶的质量用天平称出来 S瓶然后再用水把空瓶装满测量装水空瓶的质量 S水+瓶然后用 S水+瓶—S瓶=S水水的密度是知道的吧 1g/cm^3用算得的水的质量和密度求出空瓶的体积V瓶然后再把水倒出,擦净,装满油测出油和瓶的...
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