#1: the average atomic mass of hydrogen (h) is 1.008 amu. hydrogen is made up of isotopes 1h, 2h, and 3h. what can you infer about the relative abundance of these isotopes?

a. 3h is most abundant.

b. 1h is most abundant.

c. all isotopes are equally abundant.

d. 2h is most abundant.
***idk this one at all : (

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.

where are the choice options?