
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.
How to find percentage (tutorial) | Arithmetic (video) | Khan Academy
Discover how to calculate percentages with this simple method. First, write the problem as a fraction, then simplify it. Next, convert the fraction to a percentage by making the denominator 100. …
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.
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 …
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 …
Molarity (video) - 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.
Dilution (video) | Solutions and mixtures | Khan Academy
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 …
Solutions, acids, and bases | High school chemistry | Khan Academy
Learn Activity: How can solubility principles help us detect and eliminate chemical contaminants in our water supply? Molarity Use molarity to calculate the concentration of a solution. Understand the …
Moles and molar mass (practice) | Khan Academy
Using the information in the table, calculate the number of moles in a 2.03 kg sample of citric acid (C A 6 H A 8 O A 7 ). Write your answer using three significant figures.
pH, pOH, and the pH scale (article) | Khan Academy
Step 2: Calculate molarity of H + after dilution The molarity of the diluted solution can be calculated by using the moles of H + from the original solution and the total volume after dilution.