Calculate the molality of urea in the solution
At 27 degrees celsius, the vapor pressure of pure water is 23.76 mmHg and that of an aqueous solution of urea is 22.99 mmHg. Calculate the molality of urea in the solution.
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Calculate the pH during the titration of 20.00 mL of 0.1000 M CH3CH2COOH(aq) with 0.1000 M NaOH(aq) after 20.39 mL of the base have been added. Ka of propanoic acid = 1.3 x 10-5.
In most of its ionic compunds cobalt is either Co(II) or Co(III). One such compound containing chloride ion and water of hydration, was analyzed, and the following results were obtained. A 0.256g sample of the compound was dissolved in water, and
Hsolution for neutralization of HCl(aq) and NaOH(aq): Volume of HCl: 0.050 L Volume of NaOH: 0.050 L Volume total: 0.10 L Molarity of HCl: 1.99 M Molarity of NaOH: 1.99 M ?T for reaction B: 12°C Calculate the value (calories) for the heat of r
Describe the various strategies for the excretion of nitrogenous wastes employed in higher animals (chordates), both human and non-human.
What are the alkene products of 2-bromo-3-phenylbutane treated with sodium methoxide
Offer an explanation for that fact that bromine adds to 2,3-dimethyl-2-butene 920,000 times faster than to ethylene, to produce the respective dibromides
C6H6 burns in air to produce CO2 and H20. Calculate the heat release in KJ/g of the compound reacted w/ oxygen. The standard enthalpy of formation of C6H6 is 49.04 KJ/mol.
Calculate the molar concentration of H+ ions in a solution made by diluting 25 mL of 0.1 M HNO3(aq) to 500 mL with pure water.
Ethane is burned with 20% excess air in a furnace operating at a pressure of 100 kPa. Assume complete combustion occurs. Determine the dew point temperature of the flue gas.
When the reaction is complete, what is the concentration ratio of conjugate base to acid? How many moles of strong base were initially added
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