The great boston molasses flood occurred on january 15, 1919. in it, 2.3 million gallons of crude molasses flowed from a 30-foot-high storage tank that ruptured, killing 21 people and injuring 150. the estimated specific gravity of crude molasses is 1.4. what were the mass of molasses in the tank in lbm and the pressure at the bottom of the tank in l b f / in 2 lbf/in2 ? give at least two possible causes of the tragedy.

c. heat could easily travel through the molecules in the air and escape/enter the flask. removing the air slows down the heat transfer.  

number of molecules / avogadro's number * molecule molecular = mass

explanation:

we define a gram-molecular weight as the mass of one mole of any element or compound. a mole contains avogadro's number of units (molecules) –  

6.022

x

10

23

. so, dividing the number of molecules by avogadro's number gives us the number of moles. multiplying that by the molecular weight gives us the mass. from the periodic table we find the gram-molecular weight of u to be238 and of f to be19. so,  

u

f

6

will have a gram-molecular weight of 352g.