Answer :
For the provided solution that is mentioned, the final solution has a pH of pH = 1.2.
NaOH and HCl(aq) (aq) ————> aq NaCl plus o2 (l)
Strong acids and bases are being combined. We can tell from this reaction that the mole ratio is 1:1.
Let's find out how many moles each reactant has currently;
n(HCl)=30/1000*0.200=0.006 moles
NaOH concentration = 30/1000 x 2.00 = 0.06 moles.
We can observe that the amount of HCl is two times greater than the amount of NaOH. NaOH is the limiting reactant as a result.
As a result, 0.006 moles of HCl and 0.006 moles of NaOH react, with 0.006 moles of HCl remaining after the reaction.
Total volume of solution is 60 mL (0.06 L) or 30 mL plus 30 mL.
H3O+ concentration in the remaining solution is 0.006.
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