What volume of 0.120 M HNO3 (aq) is needed to completely neutralize 150.0 milliliters of 0.100 M NaOH (aq) ?

(1) 62.5 mL (3) 180. mL

(2) 125 mL (4) 360. mL

HNO3 is a strong acid and NaOH is a

strong base. An equal number of moles of

each will create a neutral solution.

(.1500L) (.100M NaOH) =.01500 moles

NaOH, and therefore. 015 moles OH-

.01500 moles H + =.01500 moles HNO3 =

(.120M HNO3) (volume HNO3)

volume HNO3 =.125L HNO3, or 125mL

HNO3