I Sodium carbonate (NaCO2) is used in heating packs for professional athletes after any
minor injury. When mixed with water, Naco, produces thermal energy (heat energy) and can
reduce injury inflammation. To create a heating pack, doctors mix 0.8 moles of Naco, with an
excess amount of water. What is the mass of sodium carbonate used in the heating packs? Show
all work.

water at room temperature is flowing through a pipe with pressure taps located 10 ft apart along one section of the pipe, which are connected to a mercury (s=13.6) manometer.

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.