Given :
Mass of toluene: 55.0 g
Density of toluene: 0.87 g/mL
Now we know Volume = mass/density
Substituting these values we get
Volume = 55.0 g÷0.87 g/mL
Volume = 63.22 mL
Height is defined as the distance from the bottom to the top of something or the highest point or the greatest degree. An example of height is 5'8". An example of height is the top of Mount Everest.
Molecular mass of HCl :
H = 1.00794
Cl= 35.453
HCl :
1.00794 + 35.453 = 36.46094 g/mol
hope this helps!
Conditions such as high pressure and high temperature must occur.