What mass of KOH should be dissolved in one Litre of its solution to prepare a solution having pH value 12 at 25 C?

How much KOH should be dissolved in one litre of solution to prepare a solution having a pH of 12 at 25^@C? In a solution having pH =12, the hydrogen ion concentration is given by the equation. Thus, 0.56g of KOH should be dissolved per litre solution to obtain a solution of pH 12.

How many grams of NaOH should be dissolved in one Litre of the solution to prepare a solution with pH 12?

2 g L−1.

How do you make a 1 KOH solution?

So if you dissolve 5.61 g of KOH in a 1- Litre flask, then you will get 0.1N KOH solution. Convert 750 mL to liters. Molecular Mass of KOH= (39.1+16+1) =56.1 g.

How many grams of sodium hydroxide must be dissolved in one Litre of water to prepare its N by 10 solution what will be its pH value?

How many grams of sodium hydroxide must be dissolved in one litre of water to prepare its N/10 solution? What will be its pH value? [OH-]=10-1M∴[H3O+]=10-13M.

How many grams of NaOH should be added?

The number of grams of NaOH to be added to water to prepare 250ml solution of 2M NaOH is 20 grams. Explanation: Molarity is defined as the ratio of the amount of solute to the solution or the amount of moles dissolved the amount of solvent in the total moles of total solution.

How do I prepare 500ml of 2M NaOH?

So, 1 L of 2.00 M NaOH solution contains 2.00×(23.0 + 16.0 + 1.0) g NaOH . And 500 mL of 2M NaOH solution contains 80.02g NaOH=40.0 g of NaOH . So, If we mix 40.0 g of NaOH with enough distilled water to make 500 mL, we will get a 2.00 M NaOH solution.

What mass of Koh should be dissolved in one litre solution?

– Quora What mass of KOH should be dissolved in one litre of solution to prepare a solution having pH of 12 at 25°C? At pH = 12, the concentration of OH- is 0.01 M. Since you want to make 1 liter of this solution you will need 0.01 moles of KOH.

How do you calculate the pH of a KOH solution?

Calculate the theoretical pH value of the KOH solution. According to the theory 1, OH – concentration is 0.1 mol dm -3 Now, you can use the equation 3 to calculate pOH with known OH – concentration. pOH = -log 10 [0.1] pH of 0.1 mol dm-3 KOH solution is 13.

How many moles of Koh are needed to make 1 liter?

At pH = 12, the concentration of OH- is 0.01 M. Since you want to make 1 liter of this solution you will need 0.01 moles of KOH. Since KOH weighs 56.11 g/mole, you will need: Now, I don’t like the way you asked the question. You should not just add this amount of KOH to a liter of water and call it a day.

Why is the pH of dilute NaOH solution higher than KOH?

So when NaOH and KOH concentrations are equal, after the dissociation, hydroxyl ion concentration is also same. Therefore pH of both solution is equal. But, basic strength of KOH is much higher than NaOH. pH of dilute NaOH solutions are usually above 10 if concnetration of NaOH is higher than 0.0001 mol dm -3