Engineering, 25.01.2020 03:31 harveyangel123p2tjae
Exactly 5.00 ml aliquots of a solution containing phenobarbital were measured into 50.00ml volumetric flasks and made basic with koh.
the following volumes of a standard solution of phenobarbital containing 2.00 µg/ml of phenobarbital were then introduced into each flask and the mixture was diluted to volume: 0.00, 0.500,1.000, 1.50, and 2.00ml.
the fluorescence of each of these solutions was measured with a fluorometer, which gave volumes of 3.26, 4.80, 6.41, 8.02, and 9.56 respectively.
(a) pot the data.
(b) using the plot from (a) calculate the concentration of phenobarbital in the unknown.
(c) derive a least-squares equation for the data.
(d) find the concentration of phenobarbital from the equation in (c)
(e) calculate a standard deviation for the concentration obtained in (d)
Answers: 3
Engineering, 04.07.2019 18:10
Carbon dioxide gas expands isotherm a turbine from 1 mpa, 500 k at 200 kpa. assuming the ideal gas model and neglecting the kinetic and potential energies, determine the change in entropy, heat transfer and work for each kilogram of co2.
Answers: 2
Engineering, 04.07.2019 18:20
Select any two (2) areas of applications of chain-drive. (clo4) a)-permanent lubrication necessary b)-hydraulic forklift truck operation c)-rigging and heavy moving materials d)-relatively high maintenance costs e)-costlier than belt drives
Answers: 2
Engineering, 04.07.2019 19:10
How to increase the thermal officiency of an ideal simple rankino cycle? among these methods, which one is the best and why?
Answers: 2
Engineering, 04.07.2019 19:10
What are the major differences between injection molding and extrusion?
Answers: 2
Exactly 5.00 ml aliquots of a solution containing phenobarbital were measured into 50.00ml volumetri...
Mathematics, 22.04.2021 18:00
Mathematics, 22.04.2021 18:00
English, 22.04.2021 18:00
Mathematics, 22.04.2021 18:00
Computers and Technology, 22.04.2021 18:00
Computers and Technology, 22.04.2021 18:00
Mathematics, 22.04.2021 18:00
Health, 22.04.2021 18:00
Mathematics, 22.04.2021 18:00
Advanced Placement (AP), 22.04.2021 18:00
Mathematics, 22.04.2021 18:00