A solution that has more hydroxyl ions than hydrogen ions are
To determine a solution that has more hydroxyl ions (OH-) than hydrogen ions (H+), you need to understand the concept of pH. The pH scale is a measure of the acidity or alkalinity of a solution, ranging from 0 to 14.
An acidic solution has a pH less than 7, indicating a higher concentration of H+ ions. A basic or alkaline solution has a pH greater than 7, indicating a higher concentration of OH- ions. A pH of 7 is considered neutral, such as pure water, where the concentration of H+ ions equals the concentration of OH- ions.
To find a solution with more hydroxyl ions than hydrogen ions, you should look for solutions with a pH greater than 7. For example:
1. Sodium hydroxide (NaOH) is a strong base that completely dissociates in water to produce both Na+ ions and OH- ions. It has a pH of about 14, indicating a high concentration of OH- ions.
2. Ammonia (NH3) in water forms ammonium hydroxide (NH4OH) and dissociates to NH4+ ions and OH- ions. It has a pH greater than 7 but less than 14.
3. Baking soda (sodium bicarbonate, NaHCO3) produces a slightly basic solution in water. It partially dissociates into sodium ions (Na+) and bicarbonate ions (HCO3-), which can react with water to form OH- ions, increasing the hydroxyl ion concentration.
Remember, pH is a logarithmic scale, so a small change in pH implies a large change in ion concentration.