A concentrated solution of H2SO4is 7.128mol/L with a density of 1.84g/mL. a) What volume of this acid is required to be diluted to 3L with a concentration of 0.150mol/L? b) Calculate the hydrogen ion concentration in this final solution.

1 Answer
Apr 21, 2018

Well, we have to make a few assumptions....

Explanation:

We wants a #3*L# volume of sulfuric acid, with a concentration of #0.150*mol*L^-1#...and this represents a molar quantity of...

#3.00*Lxx0.150*mol*L^-1=0.450*mol# with respect to sulfuric acid...

And so we take #H_2SO_4(aq)# whose concentration is #7.128*mol*L^-1#...and we take the quotient...

#(0.450*mol)/(7.128*mol*L^-1)xx10^3*mL*L^-1=63.1*mL#...and we ADD the ACID to the water....and not the reverse.

And with repsect to #[H_3O^+]#, we gots...#0.900*mol*L^-1# inasmuch as sulfuric is a diacid..