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A solution of malonic acid, H2C3H2)4, was standardized by titration with 0.1000 M NaOH solution. If 24.91 mL of the NaOH solution were required to neutralize completely 15.78 mL of the malonic acid solution, what is the molarity of the malonic acid solution?
H2C3H2O4(aq) + 2NaOH(aq) -> Na2C3H2)4(aq) + H20(l)
What mass of oxygen (in grams) reacts when 13.2 g of methanol (CH3OH) are combusted in oxygen to produce carbon dioxide and water
There are 2.2 mg of lead in exactly 500 g of a water sample. What would the concentration of lead be in parts per million.
A Venus probe detects an element with a first ionization energy of 2088. Given the table of known ionization energies provided in the introduction, what is the most likely identity of this element
determine the temperature at which water will boil in an open vessel when the atmospheric pressure is 400 mm Hg.
which compound do you expect to have a larger Rf value in a soluvent of medum polarity (such as ethyl acetate): acetominophen or phenacetin?
an average concentration of dissolved gold of 5.8*10^?9 g/L. (a) How many grams of gold are in the ocean? (b) How many m^3 of gold are in the ocean?
A solution is made by mixing 15.5 g of NaOH and 73.0 mL of 0.150 M HNO3. Calculate the concentration of OH- ion remaining in solution.
Optically pure 2-octyl sulfonate, a compound with a leaving group comparable to the tosylate and mesylate groups discussed in this chapter, was treated with varying mixtures of dioxane and water as solvent
what is the molar mass of a gaseous element that Effuses through an opening of a box 1.12 times as fast as argon at the same temperature.
Calcium and Magnesium carbonates occur together in the mineral dolomite. Suppose you heat a sample of the mineral to obtain the oxides,CaO and MgO, and then treat the oxide sample with HCl.
Cinnamon owes its flavor and odor to cinnamaldehyde (C9H8O). Determine the boiling point elevation of a solution of 89.3 mg of cinnamaldehyde dissolved in 1.00 g of carbon tetrachloride (kb = 5.03 C/m)
Calculate the pH of a solution made up from 2.2 g of potassium hydroxide dissolved in 146 mL of 0.16 M perchloric acid. Assume the change in volume due to adding potassium hydroxide is negligible.
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