Question

if there are 9.30 mol of O, how many moles of each of the following compounds are present (in H2O4; C2H4O2; and NaOH?

Answer 1

H2SO4 :

1 mol of H2SO4 contain ------------- 4 moles of O

?? mol of H2SO4 is contain ------------ 9.30 mol of O

moles of H2SO4 = 9.30 x 1 / 4

                           = 2.325

9.30 mol of O is found in 2.325 moles of H2SO4

C2H4O2 :

1 mol of C2H4O2 contain ------------- 2 moles of O

?? mol of C2H4O2 is contain ------------ 9.30 mol of O

moles of C2H4O2 = 9.30 x 1 / 2

                             = 4.65

9.30 mol of O is found in 4.65 moles of C2H4O2

NaOH :

1 mol of NaOH contain ------------- 1 moles of O

?? mol of NaOH is contain ------------ 9.30 mol of O

moles of NaOH = 9.30 x 1 / 1

                          = 9.30

9.30 mol of O is found in 9.30 moles of NaOH