What is the pH of the resulting solution when equal volumes of 0.1 MNaOH and 0.01 M HCl are mixed?

What is the pH of the resulting solution when equal volumes of 0.1 MNa

1.	What is the pH of the resulting solution when equal volumes of 0.1 MNaOH and 0.01 M HCl are mixed?
Answer» `7.0` `1.04` `12.65` `2.0` Solution :Suppose 100 mL of 0.1 M NaOH are mixed with 100 mL Of 0.01 M HCl 100ML of 0.1 M NaOH contain NaOH `=100xx0.1` MMOL = 10 mmol `100 mL` of0.01 M HCl contain HCl `=100xx0.01` mmol = 1 mmol 1 mmol of HCl will neutralize 1 mmol of NaOH `:.` NaOH LEFT unneutralized in the solution = 9 mmol Volume of solution after mixing = 200 mL `:.` Molarityof NaOH in the final solution `=(9)/(200) M = 0.045M ` `pOH = -log (0.045) = 1.35` `pH = 14-1.35 = 12.65`