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Khan Academy offers a comprehensive guide on molarity, explaining its concepts and applications in chemistry.
The most common way to express solution concentration is molarity (M), which is defined as the amount of solute in moles divided by the volume of solution in liters: M = moles of solute/liters of solution.
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Acid–base titrations. Worked example: Determining solute concentration by acid–base titration. Redox titrations. Introduction to titration.
Learn about the differences between molarity and molality in this Khan Academy video.
Molarity vs. molality. Worked example: Concentration terms. Molarity calculations. Concentration terms. Calculating one concentration term using the others.
In this video, we'll solve for [H₃O⁺] and pH in two different worked examples. First, we'll walk through the possible approaches for calculating [H₃O⁺] from pOH. Then, we'll find the pH of pure water at 50°C from the value of the autoionization constant at 50°C.
We can relate the concentrations and volumes before and after a dilution using the following equation: M₁V₁ = M₂V₂ where M₁ and V₁ represent the molarity and volume of the initial concentrated solution and M₂ and V₂ represent the molarity and volume of the final diluted solution.
Brønsted-Lowry acids and bases. Brønsted–Lowry acids and bases. Autoionization of water. Water autoionization and Kw. Definition of pH. Strong acid solutions. Strong base solutions. Acid strength, anion size, and bond energy. Identifying weak acids and strong acids.
Unit 5: Stoichiometry and the mole. Our mission is to provide a free, world-class education to anyone, anywhere. Khan Academy is a 501 (c) (3) nonprofit organization. Donate or volunteer today!