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!
1. A calibration curve constructed from absorbance values of solutions containing a known concentration of permanganate ions has the following best-fit line: y = (3.62 × 103 L/mol) x where y is the absorbance of the solution at 525 nm and x is the concentration of MnO4- (aq) in mol/L. The pathlength of the cuvettes used in the experiment is 1 cm. Based on this information, what is the molar absorptivity of MnO4- (aq) at 525 nm? Be sure to include units in your answer.
Molar absorptivity of MnO4- (aq) at 525 nm: __________________________
2. A sample of steel weighing 0.1863 g was dissolved and the manganese present was converted to MnO4- (aq). Water was then added to give a final solution volume of 100.00 mL. A sample of this solution was examined and was found to have an absorbance at 525 nm of 0.620 (pathlength = 1 cm). What is the percent Mn in this sample of steel?
The reaction involved in the purification of nickel is given below. Ni(s) + x CO(g) → Ni(CO)x(g)
Compute the value of the equilibrium constant of the reaction of SO3 as well as water to produce H2SO4 when the concentrations at equilibrium are as follows [SO3] = 0.400M [H2O] = 0.480M [H2SO4] = 0.600M
What is the percentage of (R)-phenylalanine present in this mixture? d. What is the percentage of (S)-phenylalanine present in this mixture?
The decomposition of nitrogen dioxide is a second-order reaction. At 550 K, a 0.250 M sample decomposes at the rate of 1.17 mol/Lxmin a). Write the rate expression?
What factor determines whether a carbon atom in a compound is chiral? Draw the Lewis structure for each of the following functional groups: alcohol, ether, aldehyde, ketone, carboxylic acid, ester, amine.
Is orbital hybridization something that occurs for every atom, or only atoms preparing to form a molecule.
Write the Net Ionic Equation and determine the standard potential for the reaction between permanganate and tin(II). From the potential
Calculate the equivalent height a column of mercury would have if mercury were esed instead of wted in the flask.the density of mercury is 13.6 g/cm3
Draw the organic product of the following reaction between (1S,3S)-1-chloro-3-methylcyclopentane and methanethiol in the presence of sodium hydroxide.
using a solution contains 10 ammonium by mass and hasnbsp density 0.99 gcm-3. determinenbsp hydroxyl and hydrogen ion
List the different strengthening mechanisms and identify the ones that would not apply to pure elemental materials
Do to friction with the Earth's atmosphere a large static electric charge could build up on our plummeting asteroid fragment. Would you expect our fragment to generate a magnetic field. Explain why or why not.
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