Asample of sucrose that weighs 9.35 g is placed in a 15ml flask and the remaining volume of the flask is filled with benzene. the density of benzene is 0.879g/cm3 . the sucrose and benzene together weigh 17.33g. what is the density of the sucrose?

 The  density    of sucrose is 1.58  g/  cm³

 Calculation

Step 1 :  calculate  the  volume  of benzene

volume =  mass/density

mass  of benzene =  total mass - mass  of sucrose

  =17.33 g - 9.35 g =7.98 g

volume = 7.98 / 0.879 =9.08 cm³

Step  2: calculate the volume of sucrose

volume of sucrose=  Total volume  -  volume of benzene

Total  volume = 15 ml =15 cm³

volume  of sucrose is therefore =  15 cm³  - 9.08 cm³=5.92 cm³

Step 4: calculate the  density  of sucrose

density = mass/volume

= 9.35 g / 5.92 cm³ = 1.58 g/cm³

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