Chemistry 110 experiments 4 pre lab how might one distinguish between solutions that are categorized as a strong electrolytes and solutions that are categorized as weak electrolytes

You could use a conductivity tester to test conductivities of the solutions.

Explanation:

The light bulb (see image below) will glow brightly in a solution of a strong electrolyte like KCl, because there will be many ions available to carry the current.

A solution of a weak electrolyte like acetic acid will contain relatively few ions, so the light bulb will glow weakly.

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.