You are analyzing a water sample to determine its alkalinity. You add 5 drops phenolphthalein indicator and note it turns the water pink. You titrate until the pink just goes away leaving clear water. You turn to your team's data recorder so that you can find out the volume titrated which will be Vp The recorded data says the buret was at 0.55 mL to start, and when the titration was complete the buret was at the 12.30 mL mark. What is Vp in mL? (Just enter a number in the answer box; do not enter units.) 11.75