Frequently Asked Question

Here's a breakdown of the chemistry concepts you mentioned:
Chantelier Principles: You're likely referring to Le Chatelier's Principle, which states that a system in equilibrium will shift to relieve stress. In chemistry, stress can be a change in temperature, pressure, or concentration of reactants or products.
Molarity, Mole Fraction, OH Concentration, and Calculations:
Molarity: The concentration of a solution expressed as moles of solute per liter of solution (mol/L). Calculation: Molarity = (moles of solute) / (volume of solution in liters)
Mole Fraction: The ratio of moles of a component to the total moles in a mixture. Calculation: Mole Fraction (X) = (moles of component) / (total moles of all components)
OH Concentration: The concentration of hydroxide ions (OH-) in a solution, often used to determine the solution's pH (pOH). Calculation: [OH-] = 10^-pOH
Raoult's Law: This law states that the partial vapor pressure of a solvent in a solution is equal to the vapor pressure of the pure solvent multiplied by its mole fraction in the solution. It's used to predict the vapor pressure of ideal solutions.
Sublimation: The process where a solid directly changes into a gas without passing through the liquid phase (e.g., dry ice).
Lewis Theory: A theory describing acid-base reactions based on the donation and acceptance of electron pairs. A Lewis acid accepts an electron pair, while a Lewis base donates an electron pair.
Arrhenius Definition of an Acid and a Base:
Acid: A substance that produces hydrogen ions (H+) when dissolved in water.
Base: A substance that produces hydroxide ions (OH-) when dissolved in water.
Thermodynamic Boundary Surface: This refers to the surface separating a system from its surroundings in thermodynamics. It defines the limits of the system and where energy can be exchanged.
When solid transforms into a gaseous state it is called? This is called sublimation.
Explain zero order reaction: A zero-order reaction is a chemical reaction where the rate of the reaction is independent of the concentration of the reactants. Its rate constant has units of concentration/time.