subject
Chemistry, 30.11.2019 00:31 alyo31500

Quinine in a 1.553-g antimalarial tablet was dissolved in sufficient 0.10 m hcl to give 250 ml of solution. a 10.00-ml aliquot was then diluted with 50.00 ml with the acid. the fluorescence intensity for the diluted sample at 347.5 nm provided a reading of 196 on an arbitrary scale. a standard 100-ppm quinine solution registered 125 when measured under conditions identical to those for the diluted sample. calculate the mass in milligrams of quinine in the tablet.

ansver
Answers: 1

Other questions on the subject: Chemistry

image
Chemistry, 22.06.2019 05:30, NorbxrtThaG
The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?
Answers: 1
image
Chemistry, 22.06.2019 06:30, khalaflaf2684
If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution
Answers: 1
image
Chemistry, 22.06.2019 08:40, jaueuxsn
Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.
Answers: 2
image
Chemistry, 22.06.2019 16:30, Eddie997
For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.
Answers: 2
You know the right answer?
Quinine in a 1.553-g antimalarial tablet was dissolved in sufficient 0.10 m hcl to give 250 ml of so...

Questions in other subjects:

Konu
Mathematics, 06.06.2020 07:00