They say their research shows, for the first time, that caffeine, catechols, and chemical-substances called N-alkanoly-5-hydroxtryptamides stimulate molecular mechanisms of stomach acid secretion in human stomach cells.
Page 1 of 7. Specific Heat. Objectives. In this lab you will. â¢ measure the specific heats of aluminum and lead using a calorimeter and the. Vernier Temperature Sensor. â¢ observe how the temperature of your system reaches equilibrium in real time. â¢ plot your data and analyze it using the Vernier Logger Proâ¢ software.
Rinse the aluminum in hot water, and remove your gloves. Remove the oxidation If the aluminum object is a cooking vessel, put it on a stove over medium-high heat. Otherwise, set a large pot on the stove, and set the aluminum object in it. Fill the vessel halfway with water. Add 2 tablespoons white vinegar, 2 tablespoons cream of tartar and 2 tablespoons fresh lemon juice.