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What is the coefficient of Br- when the following redox equation is correctly balanced? Show the balanced equation. BrO- + Fe(OH)2 > Br- + Fe(OH)3 (basic solution)
how many kilojoules of heat are released when 42.4 g of ch3oh at 55 degree celsius is cooled to 15.5 degree celsius.
The Kb of methylamine is 4.4*10^-4. What is the pH of a 0.35 M solution of methylamine? a. 10.19 b. 3.81 c 12.09 d. 1.91 e. 11.56
Detrmine What mass of lithium (in g) is needed to react completely with 57.9 mL of Nitrogen gas at Standard atmospheric conditions?
What is the minimum quantity (in grams) of atmospheric oxygen required to completely convert 3.77 moles of ethanol into carbon dioxide and water
The electron sea is localized between two metal atoms at a time. 4. The metal is held together by the attraction between the metal ion cores and the sea of valence electrons
What is the pH of a buffer solution prepared from 5.15g of NH4NO3 and 0.10L of 0.15M NH3? What is the new pH if the solution is diluted with pure water to a volume of 500mL
Given that the atomic mass of carbon is given as 12.0107 g/mol, what are the approximate relative abundances of the two isotopes 12C and 13C?
To a 100 mL volumetric flask are added 1.00 mL volumes of three solutions: 0.0100 M AgNO3, 0.220 M NaBr, and 0.100 M NaCN. The mixture is diluted with deionized water to the mark and shaken vigorously.
According to the Bronsted-Lowry definition, which chemical in the following reaction is the acid? CO32- + H2O -> OH- + HCO3
how many of the following combination of reactants would result in a chemical reaction being observed. Aditition of liquid bromine to an aqueous solution of NaCl Aditition of liquid bromine to an aqueous solution of NaI Bubbling chlorine gas
Calculate the molarity of a solution made by dissolving 0.650 Na2SO4 grams of in enough water to form exactly 950 mL of solution.
Using the value of Ksp for Ag2S, Ka1 and Ka2 for H2s, and Kf=1.1x10 to the fifth for AgCl2, calculate the equilibrium constant for the following reaction:
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