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The solubility of phthalic acid is water is: 0.54g/100 mL at14°C, 18g/100 mL at 100°C. How many mL of boiling water are required to dissolve 92.0 g ofphthalic acid?(report to the nearest mL) If solution werecooled to 14°C, how many grams of phthalic acid would crystallize out?
In a synthesis experiment you obtain a sample of product on which you do a melting point determination and find a melting point range of 108.0 to 114.3 degrees Celsius. The sample is supposed to be benzoic acid.
A buffer is prepared by dissolving .0250 mol of sodium nitrite in 500 ml of 0.0329 M nitrous acid. Assume no volume change after NaNO3 is dissolved. calculate the pH of this buffer.
replacement compounds for the Freons have gone into production: HFC-134a (chemical formula: CH 2 FCF 3 ) and HCFC-124 (formula:CHClFCF 3 ) In 1991. Determine the molar masses of these two compounds
Solutions of sulfuric acid and lead acetate react to form solid lead sulfate and a solution of acetic acid.5.70 of sulfuric acid and 5.70 of lead acetate are mixed.
The enthalpy of formation of methanethiol CH3SH (g) is -22.9 KJ/mol. Methanethiol can be synthesized by the reaction of gaseous methanol and H2S. Water vapor is another product.
what was the mass (g) of molecular oxygen from the air that combined with the substance to produce the dense gas? B. What is the ratio of the weight of oxygen burned to the weight of the dense gas produced?
For an acid-base reaction, what is the reacting species, that is, the ion or molecule that appears in the chemical equation, in the following acids?
A solution of 48.6% H2SO4 by mass has a density of 1.39 g/cm3 at 293 K. A 23.2 cm3 sample of this solution is mixed with enough water to increase the volume of the solution to 99.8 cm3. Find the molarity of sulfuric acid in the obtained solution.
A 376 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 630. mmHg. Calculate the moles of Ar present
Draw a potential energy diagram to illustrate this reaction mechanism, assuming that the overall reaction is endothermic. Label reaction intermediates with "RI", and activated complexes with "AC"
A typical bathtub can hold 100 gallons of water. Calculate the mass of the natural gas that would need to be burned to heat the water for a tub of the is size from 65 degrees farenheight to 108 degrees farenheight. Assume that natural gas is pure m..
Assume you carry out an experiment when the atmospheric pressure is 765mmHg and the temp in 24 degrees C. you collect Hydrogen gas and want to know the pressure of the gas
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