. What is a pH?
A pH is the logarithm of the reciprocal of hydrogen-ion concentration in gram atoms per liter. It gives a measurement from 0-14 that measures the acidity or alkalinity of the solution.
2. What makes hydrogen chemically active?
The Hydronium ion, H3O+, is what accounts for acidic properties. The hydroxyl ion (is what accounts for the alkaline properties of an object.
3. What does it mean when something is acid?
Something is an acid when it can provide a hydrogen ion. Strong acids hold H+ ions weakly, while weak acids hold their h+ ions tightly so that there are not as many free hydrogen ions contributing to its concentration.
4. What does it mean when something is basic?
Something is basic when it is an aqueous substance that can accept hydronium ions. A soluble base is referred to as an alkali.
5. How much more acidic is something that is pH 3 than pH 4?
Something at pH3 is ten times more acidic than something at pH 4.
6. How does the acidity or alkalinity of food affect human taste buds?
It is often thought of that if something tastes acidic, then it must have a low pH level. For example, citrus fruits, such as lemons, taste acidic but on the contrary they leave behind minerals that remove hydrogen ions that decrease the acidity of the body. Citrus fruits can often affect taste buds by having an acidic taste with an alkalinic affect.