The law of hydrostatic pressure is expressed as Ph = p * h * g, where h represents the height of the liquid column above a specific point. Height is significant because a greater liquid column increases the weight and, consequently, the pressure exerted at that depth. The formula indicates that pressure increases with depth due to the added weight of the liquid above. There is a noted confusion regarding notation, as p typically denotes pressure, while ρ is the standard symbol for density. Understanding these distinctions is crucial for correctly applying the hydrostatic pressure formula.