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1、用天平及量筒测固体和液体的密度实验背景题:小明用天平称得一空烧杯的质量为25g,用量筒量出40cm3的盐水倒入空烧杯中测量其总质量为73g,求此盐水的密度。(p盐水=m/V旦=1.2×103Kg/m3)
1. Use a balance and a graduated cylinder to measure the density of solids and liquids. Experiment Background: Xiao Ming used a balance to weigh an empty beaker weighing 25 g. The measuring cylinder measured 40 cm3 of salt water and poured it into an empty beaker to measure the total mass of 73 g. Density. (p brine = m/V denier = 1.2 x 103 Kg/m3)