A 10.0 cm long cylindrical glass tube, sealed at one end, is filled with ethanol. The mass of ethanol needed to fill the tube is found to be 12.30 g . The dens.

Question

Calculate the inner diameter of the tube in centimeters.

Answer 1

A 10.0 cm long cylindrical glass tube, sealed at one end, is filled with ethanol. The mass of ethanol needed to fill the tube is found to be 12.30 g . The dens.

Vol of cyl = (πr^2)h

h = 10.0 cm

12.30 g etoh  x (1 kg/1000g)  x  (1m^3/789 kg)  = 1.56 m^3

1.56 m^3  x (100 cm/m)^3  = 15.6 cm^3

This is the vol of the etoh and therefore the vol of the interior cylinder

15.6 cm^3 = (πr^2)h = (πr^2)10.0 cm

1.56 cm^2 = πr^2

.496 cm^2 = r^2

.705 cm = r

d = 2r = 1.41 cm