Question

The relative atomic mass of oxygen is 16.This means that
a.)an atom is 16 times as heavey as carbon 12 atom
b)a carbon 12 atom is 16 times as heavy as an oxygen atom
c)an oxygen atom is 16 times as heavy as 1/12 the mass of a carbon 12 atom
d)a carbon 12 atom is 16 times as heavy as 1/12 the mass of an oxygen atom
e)an aom of oxygen contains 16 protons
IS IT C?
2.)0.5 mol of K2CO3 contains
a)3 mol of oxygen atoms
b)0.5 mol oxygen atoms
c)1.5 mol oxygen atoms
d)6.02 x 10^23 oxygen atoms
e)6.02x`10^23 mol oxygen atoms

.)

Answer 1

I get C for 1 as well, cool!

Answer 2

For 2, since there are 3 atoms of Oxygen for each molecule of K2CO3, there would be 3 times the mols of Oxygen atoms.

Answer 3

thanks so much

Answer 4

No worries.