The ph of a solution is a measure of the acidity or alkalinity of a solution. water has a ph of 7 and, in general, acids have a ph less than 7 and alkaline solutions have a ph greater than 7. find the ph of a solution with a hydronium ion concentration of 8×10−8 moles/liter.

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.