Lecture+Slide+Deck

Polarity of Water

Water is a polar molecule with opposite ends having charges, allowing it to form hydrogen bonds.

Cohesion

Cohesion is the phenomenon where hydrogen bonds hold water molecules together, aiding in water transport in plants.

Hydrophilic Substances

Hydrophilic substances are those that have an affinity for water.

Hydrophobic Substances

Hydrophobic substances do not have an affinity for water due to relatively nonpolar bonds.

Evaporative Cooling

Evaporative cooling is the process where evaporation of a liquid cools its remaining surface.

Specific Heat of Water

The specific heat of water is the amount of heat that must be absorbed or lost for 1 g of water to change its temperature by 1 ºC.

Acidic Solutions

Acidic solutions have pH values less than 7.

Basic Solutions

Basic solutions have pH values greater than 7.

Buffer

Buffers are substances that minimize changes in concentrations of H+ and OH– in a solution, often consisting of an acid-base pair.

Hydration Shell

A hydration shell is the sphere of water molecules that surrounds each solute ion when an ionic compound is dissolved in water.