Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Problem- A student was asked to separate two substances, A and B, on a 30 cm column. She obtained a chromatogram that gave retention times of 15.80 and 17.23 min for A and B, respectively. The base peak widths for A and B were 1.25 and 1.38 min, respectively.
A) Average Number of Theoretical Plates
B) Plate Height
C) Resolution
D) What should be a length of the column to achieve resolution of 2? Hint: Resolution is directly proportional, but not equal, to the square root of column length
Mention all the steps and procedure to determine the correct answer
An unknown was then analyzed in this same spectrophotometer, but using a 2.50 cm cell. If the absorbance of the unknown was 0.222 AU, what is the Cu concentration
methyl alcohol ch3oh is made by reacting carbon monoxide with h2. starting with 2.5 g of h2 and 30 l of co what mass of
What are the products of a double displacement reaction involving sodium hydroxide and hydrochloric acid
Carbon-11 radioactively decays by positron emission with a half-life of 20.4 minutes. If a dosage of carbon-11 is administered to a patient for a PET scan, what percentage of carbon-11 will remain in the patient's system after 61.2 min
calculate the masses of the solid you must measure out to prepare 100ml each of 0.025 m kno3 0.025 m cuso4 0.025 m
Helium gas is contained in a pressure vessel of volume V=10m3. Determine the mass (in kg) of helium in the tank if the temperature is 20°C and the pressure is 4 bar. Use the ideal gas law. For Helium, M=4.003 kg/kmol.
considernbspthe following scenario in your assigned discussion group phoenix homeless agency pha needs funds to
an electrochemical cell is constructed at 25 c as follows. one half cell zn2zn cell that is a strip of zinc immersed in
what is the final volume in mL when 5.00 mL of a 12.0 M NaOH solution is diluted to each of the following concentrations a).600 M NaOH. b)1.00 M NaOH. c)2.50 M NaOH.
An emission line from K atoms is found to have two closely spaced components, one at 766.70 nm and the other at 770.11 nm. Account for this observation, and deduce what information you can.
For a certain chemical reaction, DH is
The individual standard electrode potentials do not indicate anything about tendency to gain electrons. The cell potential of the entire cell does.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd