What was the molarity of the base solution

These react with the phenolphthalein molecules, changing them from the acid form to the base form. Because the base form is red, the solution turns red, telling us that the reaction is complete or just slightly beyond complete. The volume of titrant added from the buret is measured. For our example, let's assume that The following setup shows how the molarity of the nitric acid solution can be calculated from this data.

The first step the unit analysis thought-process is to clearly identify the units that you want. Because molarity is a ratio of two units, we begin our calculation with a ratio of two units. Knowing that we want volume of HNO 3 solution on the bottom when we are done, we place We place We convert milliliters of HNO 3 solution to liters of HNO 3 solution using the relationship between milliliters and liters. The last two conversion factors convert from amount of one substance in a chemical reaction mL NaOH solution to amount of another substance in the reaction mol HNO 3.

Thus this is an equation stoichiometry problem that requires at its core the conversion of moles of NaOH to moles of HNO 3 using the molar ratio for the reaction between them.

Tip-off — You are given the volume of a solution of an acid or base the titrant — solution 1 necessary to react completely with a given volume of solution being titrated solution 2. You are also given the molarity of the titrant solution 1. You are asked to calculate the molarity of solution 2. Use the unit analysis process, with the following general format. How can I do redox titration calculations? How can I calculate the titration of a weak acid and a strong base? How can I make back titration calculations?

How does titration affect molarity? How does the endpoint of a titration differ from the equivalence point? See all questions in Titration Calculations. The above equation works only for neutralizations in which there is a ratio between the acid and the base. The example below demonstrates the technique to solve a titration problem for a titration of sulfuric acid with sodium hydroxide.

Calculate the molarity of the sulfuric acid. Titration Calculations At the equivalence point in a neutralization, the moles of acid are equal to the moles of base.