Lab 8 - Empirical Formula by Titration (1)
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20 Terms
Empirical Formula
The simplest whole number ratio of elements in a compound.
Titration
A technique used to determine the concentration of a solute in a solution by adding a titrant until the reaction reaches its endpoint.
Equivalence Point
The point at which the number of moles of acid equals the number of moles of base in a titration.
Endpoint
The point in a titration where the indicator changes color, signaling that the reaction is complete.
Indicator Error
The difference between the equivalence point and the endpoint in a titration.
Phenolphthalein
A pH indicator that turns fuchsia in basic solutions and colorless in acidic solutions.
Reactivity
The tendency of a substance to undergo a chemical reaction.
Hydrogen Gas (H2)
A diatomic gas produced in reactions involving metals and acids or metals and water.
Metal Hydroxide
A compound formed when a metal reacts with hydroxide ions.
Comparative Reaction Speed
A comparison of how fast different reactions occur under similar conditions.
Hydrochloric Acid (HCl)
A strong acid used in titrations to neutralize bases.
Calcium Hydroxide
The compound formed when calcium reacts with water.
Zinc Hydroxide
The compound formed when zinc reacts with water.
Pop Test
A demonstration of hydrogen gas reacting with oxygen to create water, producing a sound.
Molar Equivalent
The amount of a substance that reacts with or is equivalent to one mole of another substance.
Diprotic Acid
An acid that can donate two protons (H+ ions) per molecule.
Charge on Hydrogen
The charge associated with the H2+ ion that affects reaction speed with metals.
s-Block Elements
The group of elements, including calcium and zinc, that are characterized by their reactivity and specific electron configurations.
Metal and Acid Reaction Products
In a reaction between a metal and an acid, the products typically include a salt and hydrogen gas.
Rate of Reaction
The speed at which reactants are converted into products during a chemical reaction.
Note 
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