Citric acid, which can be obtained from lemon juice, has the molecular formula C6H8O7. A 0.250-g sample of citric acid dissolved in 25.0 mL of water requires 37.2 mL of 0.105 M NaOH for complete neutralization. What number of acidic hydrogens per molecule does citric acid have?
Chemistry 120-07 Ch. 2: Atoms and Elements Definitions: Cathode Rays: a voltage that comes from two electrodes Cathode Ray Tube: an evacuated glass tube in which cathode rays are studied Electrical charge: a fundamental part of the atom which allows particles to attract or repel each other Electron: negatively charged, low mass particles within ALL atoms Radioactivity: emission of small particles from unstable nuclei Nucleus: the center of an atom where all its mass is contained, as well as its positive charge Proton: the positively charged particle within an atom Neutron: the neutral particle within an atom Atomic Mass Unit (amu): the mass of 1/12 of a C12 atom Atomi