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Problem- Determine the ionic strength? for each of the following solutions. Assume complete dissociation of each salt and ignore any hydrolysis reactions.
a) A solution of 0.00517 M HCl
b) A solution of 0.00236 M LaBr_3
c) A solution of 0.000828 M CaBr_2 and 0.000464 M (LaNO3)_3
I want you to clarify the chemistry in this above problem.
10 g of compound A is dissolved in 250 mL of water. A single extraction with 200 mL of ether was performed, after which the aqueous layer contained 2 g of A. Calculate the partition coefficient.
Quinine emits fluorescence at the wavelength of 347 nm. An unknown quinine solution gave fluorescence reading of 400 (after background subtraction) at the 347nm.
Which would have a higher energy of activation and why, nitration of 4-bromonitrobenzene or nitration of bromobenzene
Problem- the value for Ksp for Mn(OH)2 is 1.6x10^-4M. Calculate the molar solubility of Mn(OH)2 in a solution that contains 0.020M NaOH.
What feature of atomic emission spectra is incorporated in the schrodinger model of the hydrogen atom
Carbon dioxide and how many grams of mater
a beam of 632.8 nm photons from a he-ne laser strikes a detector area of 5.0 mm2. the laser has a flux of 3.18 x 1015
the balanced net ionic equation for the reaction that takes place in aqueous solution between hydrogen peroxide and potassium iodide to make potassium hydroxide and molecular iodine.
The temperature of the stratosphere is -23.0 ºC, as well as the pressure due to the zone is 1.4 x10-7 atm. Compute the number of ozone molecules present in 1.00 m3 (1L = 10-3 m3) in the stratosphere.
Consider the system: CaCO3(s) saturated in 1.0 M H4NCl. Analyze this system by appropriate K, MB, and CB consideration in order to calculate pH and s(CaCO3). Assume volume stays 1L.
What is the molar concentration of a solution prepared by dissolving 0.6593 g of NaCl in a 100-mL volumetric flask
write seperate oxidation and reduction half reactions3 no3- aq 8al s 5 oh- aq 18 h2ol ---gt 3 nh3 g 8 aloh4-
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