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Sufficient of a monoprotic acid is dissolved in water to produce a 0.0162 M solution. The pH of the resulting solution is 2.63. Compute the Ka for the acid.
A cube of unknown metal measures 1.8 in by 0.60in by 1.2 in and has a mass of 56.67. Explain what is the identity of the unknown metal
How much heat energy is needed to to raise the tempature of a 60g sample of aluminum from 31C too 99.3C? the specific heat if aluminum is .897 J/g x K.
a gas occupies a volume of 458 mL at a pressure of 1.01kPa abd temperature of 295 K. When the pressure is changed, the colume becomes 477 mL. If there had been no change in temperature, what is the new pressure?
Calculate the pH of each of the following strong acid solutions. (a) 0.000625 M HIO4 pH = (b) 0.869 g of HBrO4 in 22.0 L of solution pH = (c) 50.0 mL of 8.10 M H2SO4 diluted to 3.50 L pH = (d) a mixture formed by adding 75.0 mL of 0.00187 M HIO4 t..
benzoic acid is a white crystalline powder used as a foodpreservative. the compound contains 5.0 hydrogen 26.2 oxygen
a kcl solution is prepared by dissolving 25.0 g kcl in 250.0 g of water at 25degc. what is the vapor pressure of the
What is the maximum amount of aluminum sulfate that can be formed?
Draw the Lewis structure for each including formal charges and describe in paragraph format how you went about solving the problem and making sure the answer was correct.
The quantity of antimony in an ore can be determined by an oxidation - reduction titration with an oxidizing agent. The ore is dissolved in hot, concentrated acid and passed over a reducing agent so that all the antimony
Write the correct equation for the oxidation of zinc in 0.1 M hydrochloric acid. (WITH EXPLANATION PLEASE)
suppose solute a has a distribution coefficient of 1.0 between water and diethyl ether. demonstrate that if 100 ml of a
What is the concentration of each of the following solutions? a) The molality of a solution prepared by dissolving 25.0g of H2SO4 in 1.30L of water b) The mole fraction of each component of a solution prepared by dissolving 2.25g of nicotine, C4H1..
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