Answer and explanation: The molecular weight of KHP is 204.23 g / mol. We need to calculate the total molecular weight that each element contributes to the compound and add these values together.
We have a balanced chemical equation where we now know the exact amount of one of the reactants (KHP) - NaOH (aq) + KHC8H4O4 (aq) = KNaC8H4O4 (aq) + H2O (l) - so we can determine the number of moles of NaOH which reacts with KHP.
First, solid NaOH absorbs water from the air, making it impossible to weigh a sample while preparing a solution. Once the NaOH solution is standardized and its concentration is well known, it can be used to titrate other acidic solutions such as HCl.
KHP is a monoprotic acid which gives an H + ion. KHP is a monoprotic acid which gives an H + ion.
How would your results be affected if a diprotic acid (such as sulfuric acid, H2SO4) that produces two H + ions were used?
The acid mole (monoprotic) can be determined from the mass of the acid and its molar mass (KHP = 204.2212 g / mol).
KHP is a weak organic acid, sodium hydroxide is a strong base. When combined, an acid-base neutralization reaction takes place which produces a conjugated salt and water as reaction products.
Standardizing a Database
A common primary standard for titration of sodium hydroxide solution is weakly acidic potassium hydrogen phthalate or KHP (C8H5O4K). The molarity of the KHP solution is determined by the mass and volume of the KHP used to prepare the KHP solution.
The molar concentration of a solution is the number of moles of solute divided by liters of water in the solution. They measure the molar concentration in moles per liter. One mole of solute in one liter of water gives a concentration of 1 M.
Molarity formula. Molarity is the most common term used to describe the concentration of a solution. It is equal to the moles of solute divided by liters of solution. The solution is defined as the substance that is dissolved, while the solvent is the substance in which the solution is dissolved (usually water).
The answer is 71.08001. Let’s say you are converting between grams of KHP and moles. You can see more details on each unit of measurement: The molecular weight of KHP, or the mole SI base unit for the amount of substance, is the mole. 1 gram of KHP is equal to 0.014068654838651 mol.
Normalization is the process by which the exact concentration (molarity) of a solution is determined. Titration is an analytical method often used in standardization. In a titration, an exact volume of one substance is converted into a known amount of another substance.
indicate that there is a base in the flask, so the molarity increases all the more as the base volume used is small, since M = mol / liter. You used a small amount of NaOH, the smaller amount of NaOH increases the molarity. This indicates that you have added too little NaOH.
It can be harmful if absorbed through the skin. Ingestion: May irritate the digestive tract. It can be harmful if ingested. Inhalation: May cause respiratory tract irritation.