How do you find the molarity of Khp?

If you know exact weight of KHP you use, you just convert them into moles. If you know haw much solution you prepare, you can now find out how many moles of KHP in your solution. Number of moles divided by volume is concentration. If you want to know it in molar, be sure that your volume is in litre.

To determine the molarity of NaOH solution, student took 3.5 g of KHP (KHPPotassium hydrogen phthalate; Molar mass = 204.22 g/mol) and dissolved in 50 mL of water and titrated with the given unknown molarity NaOH solution loaded in burette.

Beside above, how do you calculate the molar amount of Khp used to neutralize the NaOH solution? Calculate the molar concentration of the NaOH solution that you prepared Number of moles of KHP = Number of moles NaOH = 2.476 x 10 -3 moles Number of moles NaOH = Mb x Vb Mb = 2.476 x 10 -3 moles / 0.0250 L (equivalence point) = 0.0990 M 3.

Then, how do you calculate Khp?

The number of moles of KHP is found by multiplying the moles of NaOH by the mole ratio of KHP to NaOH given by the above, balanced chemical reaction.

How do you find the molarity of standardized NaOH?

Method 1:

  1. Calculate the number of moles of solute present. mol NaOH. = 15.0g NaOH. x. 1 mol NaOH. 40.0 g NaOH. mol NaOH.
  2. Calculate the number of liters of solution present. L soln. = 225 mL. x. 1 L. =
  3. Divide the number of moles of solute by the number of liters of solution. M. = 0.375 mol NaOH. = 1.67 M NaOH. 0.225 L soln.

Why is standardizing NaOH important?

First of all, solid NaOH absorbs water from the air, so accurately weighing a sample during the preparation of a solution is impossible. Once the NaOH solution has been standardized and its concentration is well-known, it can be used to titrate other acid solutions such as HCl.

What is Khp NaOH?

The reaction between an acid and base produces a salt and water, something that you may have heard before. In the reaction that you will be investigating, the acid is potassium hydrogen phthalate (KHP), and the base sodium hydroxide (NaOH). NaOH(aq) + KHC8H4O4(aq) = KNaC8H4O4(aq) + H2O(l)

How many moles are in 0.600 g of KHP?

The answer is 71.080001. We assume you are converting between grams KHP and mole. You can view more details on each measurement unit: molecular weight of KHP or mol The SI base unit for amount of substance is the mole. 1 grams KHP is equal to 0.014068654838651 mole.

What is the reaction that takes place between KHP and NaOH?

reaction is called a neutralization reaction because two caustic compounds, KHP, a mild acid, and NaOH, a strong base, are replaced by water and a weaker base.

What is molarity formula?

Molarity Formula. Molarity is the most commonly used term to describe the concentration of a solution. It is equal to the moles of solute divided by the liters of solution. The solute is defined as the substance being dissolved, while the solvent is the substance where the solute is dissolved (usually water).

Is NaOH a primary standard?

NaOH is highly delinquescent., ie., it becomes watery when exposed to air within a few minutes. So NaOH cannot be used as a primary standard.

Is NaOH an acid or base?

NaOH is a base because when dissolved in water it dissociates into Na+ and OH- ions. It is the OH- (hydroxyl ion) which makes NaOH a base. In classical term a base is defined as a compound which reacts with an acid to form salt and water as depicted by the following equation. NaOH+HCl=NaCl+H2O.

What is Khp used for?

It forms white powder, colorless crystals, a colorless solution, and an ionic solid that is the monopotassium salt of phthalic acid. KHP is slightly acidic, and it is often used as a primary standard for acid-base titrations because it is solid and air-stable, making it easy to weigh accurately.

How do you determine concentration?

Divide the mass of the solute by the total volume of the solution. Write out the equation C = m/V, where m is the mass of the solute and V is the total volume of the solution. Plug in the values you found for the mass and volume, and divide them to find the concentration of your solution.

Is Khp Monoprotic or Diprotic?

KHP is a monoprotic acid which provides one H+ ion. KHP is a monoprotic acid which provides one H+ ion. How would your results be affected if a diprotic acid (such as sulfuric acid, H2SO4) was used which provides two H+ ions?

How do you find the standardization of NaOH?

In the first standardization the molarity of a sodium hydroxide solution (NaOH) will be determined by titrating a sample of potassium acid phthalate (KHP; HKC8H4O4) with the NaOH. In the second procedure the standardized NaOH will be used to determine the molarity of a hydrochloric solution (HCl).

How do you standardize NaOH with KHP?

To Standardize: Weigh ~0.8 g of dried KHP (MW = 204.23 g/mol) into an Erlenmeyer flask and dissolve in 50-75 mL of distilled water. Add 4 drops of indicator into the flask and titrate to the first permanent appearance of pink. Calculate the concentration of NaOH in the following way:

How do you standardize acids and bases?

To standardize a base solution such as NaOH, an acid whose amount can be determined to a high degree of accuracy (called a primary standard) is needed. Potassium hydrogen phthalate (KHP), a monoprotic acid, is often used as a primary standard for titrating bases. KHP can be dried in an oven to remove traces of water.