What is the mass percents for the elements present in #H_2SO_4#?

1 Answer
Jan 11, 2016

Answer:

Well, I know the sum of all the elemental percentages should be 100%.

Explanation:

Let's see, the formula weight of sulfuric acid is #98.08# #g#. Are you clear on how I got this? Splitting this up to elemental percentages, we get:

#H# #=# #(2xx1.0079*g)/(98.08*g)# #xx# #100%# #=# #2.06%#

#S# #=# #(32.06*g)/(98.08*g)# #xx# #100%# #=# #32.07%#

#O# #=# #(4xx15.99*g)/(98.08*g)# #xx# #100%# #=# #65.25%#

The sum of the percentages is near enough to 100% as required.