Homework Answers
Ans 1
At 25°C
Mass =10.0181 g
Volume = 6.75 mL
Part a
Density = mass/volume
= 10.0181 g / 6.75 mL
= 1.4841 g/mL
Part b
The calculated density is almost same as for chloroform. The unknown liquid is chloroform
Part C
For water, density = 0.9982 g/mL
Volume = mass/density
= 10.0181 g /0.9982 g/mL
= 10.036 mL
Part d
Volume = 10 mL
Mass of toluene = density of toluene x volume
= 0.8669 g/mL x 10 mL
= 8.669 g
Mass of chloroform = density of chloroform x volume
= 1.4832 g/mL x 10 mL
= 14.832 g
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