How do you dilute 50\% caustic?

So by adding 122.5 ml of water to 49\% NaoH we get 40\% NaoH. Take 1000 ml water in a conical flask. As the molecular weight of NaOH is 40 so to make 50\% solution take 20 gm of that NaOH into the water. agitate that solution and then you will get 50\% NaOH solution .

What is a 50\% solution of NaOH?

A 50\% (w/w) sodium hydroxide solution means that there is 50 g of NaOH per 100 g of solution. The density of 50\% (w/w) Sodium hydroxide solution is 1.515 g/ml at 25°C which means that the weight of the 1 ml of Sodium hydroxide solution is 1.515 g at 25°C.

How do you make a 15\% NaOH solution?

Molarity of 15\% NaOH solution=(8×100)/(40×100)=3.75. M1V1= M2 V2. V2=M1V1/M2=8×100/3.75=213 ml. As the final volume is 213 ml, water to be added= 213–100= 113 ml.

How do you dilute lye?

Stir the sodium hydroxide, a little at a time, into a large volume of water and then dilute the solution to make one liter. Add sodium hydroxide to water—do not add water to solid sodium hydroxide.

How do you calculate caustic concentration?

Testing Method for Recovered Caustic

1. Obtain a 10ml sample of the solution.
2. Add 3 drops of Phenolphthalein Indicator and mix.
3. Add 2.56N Sulfuric Acid, drop by drop, mixing after each addition and counting the number of drops until the color changes from pink to colorless.

What is a 50 solution?

50\% (w/v) NaCl would be 50 grams in 100 mL of water. I always interpreted that to be 50 grams of NaCl in 100 mL of solution (solution = water + salt). Other Sciences.

How do you make a 1.25 NaOH solution?

Preparation of standardized 0.313 N (1.25\%) NaOH solution Add 13.16 g of NaOH (95\% NaOH) in one litre distilled water and shake well.

How do you dilute NaOH?

Helmenstine, Anne Marie, Ph. D. “How to Prepare a Sodium Hydroxide or NaOH Solution.” ThoughtCo, Sep. 7, 2021, thoughtco.com/prepare-sodium-hydroxide-or-naoh-solution-608150.