A steady$-$state neutralization reactor is used to treat acidic effluent containing phosphoric acid $(H_{3}P{O}_4).$ The effluent, containing $12\mathrm{.}3\frac{w}{w}\%H_{3}P{O}_4,3\mathrm{.}4\frac{w}{w}\%$ suspended solids, and the remainder water, is fed at $335k\frac{g}{h}.$ It is neutralized with $145\frac{L}{h}$ of $6\mathrm{.}0MNaO{H}_{(aq)}$ at $20C.$ The neutralized effluent is removed as a single stream.

The neutralization reaction is as follows:

$H_{3}P{O}_4+3$NaOH$N{a}_{3}P{O}_4+3H_{2}O$

Using Excel or similar software, determine the composition $($in w$/$w$\%)$ of the neutralized effluent. You must submit your solution as an Excel spreadsheet.