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To prepare a 1% phenolphthalein solution in 2000mL, you would need to dissolve 20g of phenolphthalein in 2000mL of solvent (usually water or alcohol). This will result in a 1% solution by weight/volume. Remember to wear appropriate personal protective equipment and handle chemicals with care.
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What is phenolphthalein molecular weight?
It has the molecular formula C20 H14 O4. Thus its Mr is (12*20+1*14+16*4) or 318.
How do you prepare phenolphthalein indicator for titration?
Upon swallowing such a solution, you would collapse almost immediately and lose consciousness within 10-20 seconds. Death would follow in a matter of minutes. With such a massive dose taken, any medical assistance, no matter how aggressive, would prove futile. A gram mixed in with about 4 to 8 oz water would render you unconscious within 15-45 sec (depending on your body) and without medical attention you would be dead within 30-45 min.
What does Phenolphthalein indicate?
Phenolphthalein indicates the presence of an acid or base within substance. When there is a base present the phenolphthalein will create a pink to fuchsia color. When an acid is present the phenolphthalein will create a colorless to orange color.
How much phenolphthalein indicator should be used?
Typically, 1-2 drops of phenolphthalein indicator are sufficient to use in an acid-base titration experiment. It is important not to use too much indicator, as it can affect the accuracy of the titration results.
How will you prepare 1 percent naoh?
To prepare a 1% NaOH solution, you can mix 1 part of NaOH (sodium hydroxide) with 99 parts of water by weight. For example, to prepare 100 mL of 1% NaOH solution, you would dissolve 1 gram of NaOH in 99 grams of water. Remember to always add NaOH to water slowly while stirring to avoid splattering and heat generation.
Preparation of 1 percent agarose gel or How to prepare 1 percent agarose gel?
Check the answer for How do you make an electrophoresis gel?
How do you prepare borscht reagent?
To prepare borscht reagent, you typically combine a concentrated solution of phenolphthalein with a potassium hydroxide (KOH) solution. First, dissolve around 1 gram of phenolphthalein in a small amount of ethanol, then slowly add this to 100 mL of a 1 M KOH solution while stirring. This reagent is often used for detecting the presence of alkaline substances in various chemical tests. Always remember to label the solution and store it appropriately.
How do you make 1 solution phenolphthalein?
To make a 1% solution of phenolphthalein, you would typically dissolve 1g of phenolphthalein in 100mL of a suitable solvent, such as ethanol or water. Mix well until the phenolphthalein is fully dissolved to obtain the desired concentration.
How do you make phenophtalene indicator from the powder?
1. - Weigh out 0.5 g of phenolphthalein. 2. - Prepare a 50% ethanol (ethyl alcohol) solution consisting of 50ml ethanol and 50 ml water. 3. - Dissolve the phenolphthalein thoroughly in the 50% ethanol solution. 4. - Use from a bottle fitted with an eye dropper. Store the rest in a stoppered bottle.
How many ml are needed to prepare 1 liter of 2.5 percent dextrose solution?
25
What is 2000ml?
2 ltersThere are 1000 milliliters in 1 liter. One milliliter is 0.001 liter.
How do you prepare 1 percent gentian violet?
1) take 10gm of gentian violet. then add to them: 2) Alcohol 70% ( H2O).... to 1000 ml
How many grams of hydrocortisone powder should be used to prepare 1 pound of a 25 percent hydrocortisone cream?
120 g
How many grams of a drug must be used to prepare 5000 milliliters of a 1 percent solution?
You need 50 g of this drug.
What is larger 1l or 2000ml?
1 liter (1 L) is equal to 1000 milliliters (ml). Therefore, 2000 ml is larger than 1 L, as it is equivalent to 2 liters.
What is phenolphthalein molecular weight?
It has the molecular formula C20 H14 O4. Thus its Mr is (12*20+1*14+16*4) or 318.
How many milliliter in two liters?
2000ml = 2L. A Milliliter is 1000th of a Litre.
