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When solutions of lead(II) nitrate and sodium iodide are mixed, a bright yellow precipitate appears. When 0.25 L of a 3.5 mol/L solution of lead(II) nitrate is mixed with a large amount of sodium iodide, the moles of precipitate formed is __ moles.
Erbium metal (Er) can be prepared by reacting erbium(III) fluoride with magnesium; the other product is magnesium fluoride. Write and balance the equation for the reaction.
a solid zinc cadmium zncdscn4 has a tetrahedral zn and cd atoms connected in a three-dimensional network by cd-scn-zn
Question- Show how you would accomplish the following synthetic transformations. a) 1-butene to 1-bromobutane
considering the given reaction as cocl2g---gt cog cl2gcarried out in a two litres pressure vessel at 500knbsp.where
determine the specific heat capacity of a metal that has a mas of 14 grams. As the metal cools from 400 degrees celcius to 200 degrees celcius, 364 joules of heat is released
Calculate the number of grams of solute that would be needed to make each of the following solutions
a the solubility product for lead bromide is6.3x10-6. what is the molar solubility of lead bromidein moles per liter of
Compute the charge on the nitrogen atom in the subsequent molecule? There is a pair of non bonding electrons on Nitrogen. The nitrogen atom is drawn in a hexagon at the lower pointed tip with two dots on the nitrogen atom.
what would be the expected conponent concentration in octanol phase at equiliibrium if the same partitioning procedure would be performed at 60*C? (octanol/ water partitioning coefficient expressed as K= Coct/Cwater).
A compound A has prominent infrared absorptions at 1050, 1786, and 1852 cm-1 and shows a single absorption in the proton NMR spectrum
A lactic acid/lactate ion buffer solution contains 0.31 M HC3H5O3 and 0.90 M C3H5O3- , respectively. The Ka value of lactic acid is 1.4x10^-4 . Calculate the PH of this buffer.
What reagent is used to keep the above separation in a weakly basic condition. Why is this necessary
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