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Set up the net ionic equations for (a) the neutralization of HCl and (b) the neutralization of choloroacetic acid in such a way that they sum to the equation for (c) the dissociation of choloroacetic acid. Use Hess' law of heat of summation to find the heat of dissociation for choloroacetic acid.
Problem- A solution of H2SO4 with a molal concentration of 1.94m has a density of 1.119g/mL. What is the molar concentration of this solution
a solution is prepared by combining 11.7 grams of sodium hydroxide in approximately 450 mili litres of h2o in a
Question- Use dimensional analysis to calculate the volume of 3.00M of phosphoric acid needed to neutralize 63g of potassium hydroxide.
What is the chemical formula of a homonuclear diatomic gas if it has a pressure of 1.40 atm and a density of 1.82 g/L at 27 ºC?
Calculate the volume of these ten ball bearings in liters (L). In performing the calculation, present your work as unit conversions, and report your answer to the correct number of significant figures.
You have a mixture containing the following pairs of compunds as solid. which of the following reagents could you use to separate the two compunds from each other
Question- Calculate the pH of a buffer solution obtained by dissolving 15.0 g of KH2PO4 (s) and 29.0 g of Na2HPO4 (s) in water and then diluting to 1.00 L
The pH of a 0.015 M ammonia solution is 10.72. What is its hydroxide-ion concentration
Exactly 4.00g of a solution of sulfuric acid was diluted with water as well as excess of cacl2, was added. The washed as well as dried precipitate of BaSO4 weighted 4.08g. Determine the percent H2SO4 in the original acid solution
If a sample of propane C3H8 contains a total of 6.0 x 10^3 atoms of carbon, Explain how many molecules of propane are in the sample
What is the cell diagram for the spontaneous cell involving the Fe3+ | Fe2+ (0.771V) half cell and the Zn2+ | Zn (-0.763 V) half cell. a. What is the cell diagram. b. Write the net redox equation c. What is E°cell
Explain what is the entropy of a mixture made up of 2.4 moles of O2 as well as 9.2 moles of N2 at the same temperature and pressure? The absolute molar entropies of O2 and N2 are 205 J/K.mol as well as 192 J/K.mol respectively at 25 C
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