A 0.4159-g sample of primary-standard was treated with 42.00 mL of dilute perchloric acid. The solution was boiled to remove , following which the excess was back-titrated with 9.65 mL of dilute . In a separate experiment, it was established that 26.76 mL of the neutralized the in a 25.50-mL portion. Calculate the molarities of the and .

Ur e n d is not real

You would be correct, boiling water does disinfect contamination.    the property of disinfecting means to kill  germs, bacteria and other pathogens or contamination  that might cause an infection or cause a person to become sickly. a couple methods of disinfecting are using soap, other cleaning supplies or by simply "boiling" the contaminate.  the reason why boiling water disinfects certain attributes is because some cells cannot survive the heat and pressure.