Exactly 5.00-mL aliquots of a solution containing phenobarbital were measured into 50.00-mL volumetric flasks and made basic with KOH. The following volumes of a standard solution of phenobarbital containing 137 ppm of phenobarbital were then introduced into each flask and the mixture was diluted to volume: 0.00, 5.00, 10.00, 15.00, and 20.00 mL. The fluorescence of each of these solutions was measured with a fluorometer, which gave values of 126.0, 290.4, 454.8, 619.2, and 783.6, respectively. What is the concentration (in ppm) of phenobarbital in the unknown?
Answers: 1
Other questions on the subject: Chemistry
Chemistry, 22.06.2019 09:30, janetexcoelho
What does the mass of 0.7891 mol of ferric oxide (fe2o3)
Answers: 1
Chemistry, 22.06.2019 17:20, alexis3060
How do you know when a chemical reaction has occurred
Answers: 1
Chemistry, 22.06.2019 21:00, melissalopez12
Acandle’s wick is the fabric string that holds the flame, and it burns down at a constant slow pace when the candle is lit. the wick is usually surrounded by wax. which is the most important property of covalent compounds that makes them useful for making candle wax? a low boiling point a low melting point a high boiling point a high melting point
Answers: 1
Chemistry, 23.06.2019 00:30, quintink
How can you write e method for the experiment of separating sand from water by filtration process? 1-materials 2-steps 3-conclusion also the same for the separating process of water and salt by filtration or distillation. quick because i need to finish my hw
Answers: 2
Do you know the correct answer?
Exactly 5.00-mL aliquots of a solution containing phenobarbital were measured into 50.00-mL volumetr...
Questions in other subjects:
Mathematics, 09.10.2019 23:50
Biology, 09.10.2019 23:50
Computers and Technology, 09.10.2019 23:50
