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.
Write out the formula for Percent Error below. Percent error = Answer the following questions 1. Working in the laboratory, a student finds the density of a piece of pure aluminum to be 2.85 g/cm 3. The accepted value for the density of aluminum is 2.699 g/cm 3.