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Problem- Calculate the ratio of the masses of the buffer components required to make the buffer. a buffer with pH = 9.00 = ?? NH4+/NH3.
I am not able to solve the above problem somebody help me to get the correct answer
Calculate the heat released when 1 kg of white phosphorus is allowed to burn in air at a constant pressure of 1 bar.
If a reaction vessel contains 50.0 of carbon dioxide and 25.0g lithium hydroxide what mass of lithium carbonate can be produced?
A doctor prescribes 3 g of a drug, daily, for a patient. The pharmacist has only 750-mg tablets available. How many tablets will the patient take daily
Calculate the maximum volume in mL of .15M HCl that each of the following anti-acid formulations would be expected to neutralize. Assume complete neutraliation.
State the advantage and disadvantage of a furnace compared with a flame in atomic absorption spectroscopy
Write a mechanism for the reaction of an alkyl halide with alcoholic silver nitrate which depicts the type of substitution which occurs. Explain how this mechanism accounts for the relative rate of reactivity of 1o, 2o and 3o halides in this react..
when 15.12 ml of 0.1194 M NaOH is added to 25 ml of 0.1264 M HX(an unnknown weak acid),the resulting pH is 5.9 . what is the ka of the unknown acid
Nitrosyl bromide, \rm NOBr, is formed in the reaction of nitric oxide, \rm NO, with bromine, \rm Br_2: \rm 2NO(g)+Br_2(g)\rightleftharpoons 2 NOBr(g) The reaction rapidly establishes equilibrium when the reactants are mixed.
a 290ml flask contains pure helium at a pressure of 756torr . a second flask with a volume of 480ml contains pure argon
Using a solution of KMnO 4 has a percent transmittance of 27.3 percent when observed in a 1.15-cm cell at a wavelength of 525 nm. Compute the absorbance of this solution.
molecular formula of a compound.a compound of p and f was analyzed as follows heating 0.2324 g of the compound in a
The second order rate constant for a reaction is 4.2300 x 102 M-1s-1. If the initial reagent concentration is 0.93800 mol/L, determine the time (in seconds) required for the reagent concentration to reach 0.21800 mol/L.
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