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Why is it important not to pipette a reagent solution directly from bottle of a reagent stock solution?
Wiki User
∙ 14y ago
Contamination. Your stock solution has a known molarity and should not be contaminated with anything. Even a "clean" pipette tip. Its just good lab etiquette.
Wiki User
∙ 14y ago
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What is the best way to obtain 5ml of liquid reagent from a large reagent bottle?
Use a pipette.
Effect of formaldehyde to schiff's reagent?
a mixture of formaldehyde and schiif's reagent will result to a purple solution
What is barfoed's solution?
Barfoed's reagent consists of a 0.33 molar solution of neutral copper acetate in 1% acetic acid solution
What is the Definition of standardization in analytical chemistry?
The process whereby the concentration of a reagent is determined by reaction with a known quantity of a second reagent
What is the purpose of the hydroxylamine solution that is added to the unknown solution in the iron analysis?
hydroxylamine is a reagent that helps reduce iron
What is the best way to obtain 5ml of liquid reagent from a large reagent bottle?
Use a pipette.
What reagent is used to test for unsaturated hydrocarbons?
This reagent is bromine in solution.
What reagent is used to detect protein in a solution?
biuret reagent
What is the reagent used to test proteins?
Buiret Reagent
What reagent is used to detect glucose in a solution?
You are not supposed to use buret reagent to detect sugar carbohydrates in a solution. Buret reagent is used to detect proteins. Try using iodine ( I2KI)
Effect of formaldehyde to schiff's reagent?
a mixture of formaldehyde and schiif's reagent will result to a purple solution
What is logol solution for?
If you think to Lugol, this solution is used as antiseptic, disinfectant, source of iodine, reagent for starch detection, reagent to detect some microbes, etc.
What solution is use to test starch?
Iodine-KI reagent. Add to the substance being tested directly. Result: If positive, Turns Blue/Black If negative, (absence of starch) Solution remains orange/yellow.
What are the science lab facilities and equipments?
Conical flask .Measuring cylinder,Reagent bottle,Condenser,Pipette,Burette,thermometer,Barometer,Forceps
What chemical reagent of protein?
Biuret reagent is used to test for protein in urine. It is a common test that students in biology class perform. Urine is added to a test tube, followed by approximately the same amount of Biuret reagent. If the solution turns lavender this means that there are proteins present in the urine.
What is the reagent used to test for complex sugars?
benidict's solution
How Benedict's reagent solution react with potato juice?
potato juice if mixed with benedict's reagent will give a brick-red precipitate.
