How many millliters of 275 M H_2SO_4(aq) are needed to react completely with 58.5 g of BaO_2(s)?

1 Answer
Jul 7, 2016

Are you sure mean barium peroxide, BaO_2, and not barium oxide, BaO.

Explanation:

BaO_2(s) + H_2SO_4(aq) rarr BaSO_4darr + H_2O_2(aq)

This used to be used as an industrial method to make hydrogen peroxide.

So "moles of barium peroxide" = (58.5*g)/(169.33*g*mol^-1) = 0.345*mol.

We need 1 "equiv" sulfuric acid.

If 0.275*mol*L^-1 sulfuric acid is available, we need (0.345*mol)/(0.275*mol*L^-1)xx1000*mL*L^-1 = 1255*mL.