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  1. How to calculate molarity (article) | Khan Academy

    You can mix a smaller amount of a liquid into a larger amount of another liquid and use molarity where the minor liquid is the solute and the major liquid is the solvent.

  2. Determining solute concentration by acid–base ... - Khan Academy

    First, calculate the number of moles of strong base required to reach the equivalence point of the titration. Then, using the mole ratio from the balanced neutralization equation, convert from moles of …

  3. Molarity (video) | Solutions and mixtures | Khan Academy

    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.

  4. Molarity (video) | Mixtures and solutions | Khan Academy

    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.

  5. Molarity vs. molality (video) | Khan Academy

    Learn how molarity and molality differ! The molality of a solution is equal to the moles of solute divided by the mass of solvent in kilograms, while the molarity of a solution is equal to the moles of solute …

  6. Worked examples: Calculating [H₃O⁺] and pH - Khan Academy

    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 …

  7. Stoichiometry (article) | Chemical reactions | Khan Academy

    Using this ratio, we could calculate how many moles of Al are needed to fully react with a certain amount of Fe 2 O 3 , or vice versa. In general, mole ratios can be used to convert between amounts of any …

  8. Dilutions (video) | Molarity | Khan Academy

    The dilution equation (M1*V1) = (M2*V2) is used to calculate the molarities and volumes required for the dilution. This often starts with a concentrated stock solution, which is then diluted to achieve the …

  9. Worked example: Calculating the pH after a weak acid–strong base ...

    Let's start with the weak acid. We're gonna use the molarity equation. Molarity is equal to moles over liters. So for our weak acid, the concentration is 2.0 molar, so we plug that in, and the volume is 100 …

  10. Acid–base titrations (video) | Khan Academy

    If we know the moles of our analyte and the original volume of the analyte, we can now calculate the concentration of the analyte solution in molarity that we began with which is the objective of a titration.