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A 2.083 g sample of a mixture containing sodium carbonate and sodium bromide was placed in a 250.0mL volumetric flask and enough water was added to fill to th emark. A 25.00mL portion of this solution required 17.56mL of hydrochloric acid(0.1396 mol/L) for complete neutralization. Calculate the percent of sodium carbonate in the mixture.
consider the given case as first anionsnbsp will not precipitate in the presence of agno3 and second anions get
Solutions of strontium hydroxide, silver nitrate, hydrogen phosphate, potassium nitrate, and copper (II) sulphate are prepared and placed in separate containers. Consider the reaction of the pairs of these compounds.
How much heat in Joules is required to raise the temperature of 1.000 kg of water by 60.0 oC? Cp,m (H2O) = 75.29 J mol-1 K-1. Molar Mass (H2O) = 18.015 g mol-1.
What conclusions can you come to regarding the accuracy in determining the conversion factor? include a statement about the significant figures in this exercise.
The vapor pressure of pure CCl4 at that temperature is 143 torr and the vapor pressure of the pure unknown is 85 torr. What is the molar mass of the unknown?
The following reaction is example of elimination and substitution reaction. Categorized this reaction as an E1, E2, or SN1, SN2 CH3CH2O¯ + CH3CH2Br ? CH3CH2OCH2CH3 + Br¯ Please, explain.
Calculate the molarity of a solution made by dissolving 0.150 mol Na2SO4 in enough water to form exactly 760 mL of solution.
the triangleG and triangleG0! both refer to the free energy change in the steady state reaction. steady state means that the concentrations of substrates and products are fixed or constant. all of the following statements about triangleG and trian..
Fin the mass of AlCl3 that is produced when 25.0 grams of Al2O3 react with HCl according to the following balanced equation
The Ka of a monoprotic weak acid is 6.08 × 10-3. What is the percent ionization of a 0.187 M solution of this acid
Give the complete ionic equation for the reaction (if any) that occurs when aqueous solutions of lithium sulfide and copper (II) nitrate are mixed.
consider a situation in which 235g of p4 are exposed to 272g of o2. what is the maximum amount of p2o5 that can
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