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Why the NaOH solution is heated before adding BaCl2 in the two solutions method for determination of purity of NaOH sample?
Why the NaOH is heated before adding in BaCl2 for determination of purity of NaOH sample?
Why is it necessary to cool the filtrate before adding the methylene chloride?
Cooling the filtrate before adding methylene chloride helps to prevent the formation of emulsions, which are mixtures of two immiscible liquids that do not easily separate. By cooling the solution, any heat-induced emulsions can be avoided, making the extraction process more efficient and ensuring better separation of the organic and aqueous layers.
Why must the sugar solution be cooled before adding yeast?
Cooling the sugar solution before adding yeast helps prevent the yeast from being killed by the high temperature. Yeast is a living organism that is sensitive to extreme temperatures, and adding it to a hot solution can potentially kill the yeast and hinder fermentation. Cooling the sugar solution to a suitable temperature ensures that the yeast can thrive and ferment the mixture properly.
Why would you wait 5 minutes before spraying Lugol's solution?
Comen sence you dip sticks
Procedure for retic stain in histology?
Deparaffinize and hydrate tissue sections. Stain with a 1% solution of potassium permanganate for 5 minutes. Rinse with tap water. Counterstain with a 1% solution of oxalic acid for 1-2 minutes. Rinse and dehydrate before mounting with a coverslip.
Why is it necessary to dry the ice before adding to the water?
It is not necessary.
Before adding or subtracting two fractions they are converted into like fractions Explain with examples why this is necessary?
Before adding or subtracting two fractions they are converted into like fractions. Explain with examples why this is necessary.
How long should I parboil the vegetables before adding them to the stir-fry?
Parboil the vegetables for about 2-3 minutes before adding them to the stir-fry.
Should you drain beans before adding them to chili?
It is not necessary to drain beans before adding them to chili, as the liquid in the can can add flavor and help thicken the chili.
How long should I bring the mixture to a simmer before adding the remaining ingredients?
You should bring the mixture to a simmer for about 5-10 minutes before adding the remaining ingredients.
Why is it necessary to shake an oil and vinegar salad dressing before it to a salad?
It is necessary to shake an oil and vinegar salad dressing before adding it to a salad because they separate easily.
Why do we dip the leaf in water before adding the iodine solution?
Dipping the leaf in water before adding the iodine solution helps to soften the leaf tissue, making it easier for the iodine solution to penetrate and react with the starch present in the leaf. This process enhances the visibility of the starch by allowing the iodine solution to spread more evenly throughout the leaf.
Why is NaOH heated before adding BaCl2?
Heating NaOH before adding BaCl2 helps to dissolve NaOH completely in water, ensuring that no solid NaOH remains undissolved in the solution. This is important because the reaction between BaCl2 and NaOH requires the NaOH to be in solution to react with the BaCl2. Heating the solution can also speed up the reaction between NaOH and BaCl2.
How long must the chilled creamer dispenser cool before adding refrigerated creamer?
The chilled creamer dispenser should cool for about 30 minutes before adding refrigerated creamer.
Why the NaOH solution is heated before adding BaCl2 in the two solutions method for determination of purity of NaOH sample?
Why the NaOH is heated before adding in BaCl2 for determination of purity of NaOH sample?
What is the difference solution dye and dope dyed?
Solution dyeing involves adding color to the fiber solution before it is extruded, resulting in a fully colored fiber. Dope dyeing involves adding color to the polymer dope (solution) before spinning, making the fiber colored throughout. Solution dyeing tends to offer more vibrant colors and greater colorfastness compared to dope dyeing.
Why is it necessary to put some sugar with the yeast before adding it to the dough?
because it helps the fermentation of the yeast.
