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Write balanced chemical equations for the reactions involved when salicylic acid is dissolved in aqueous NaOH and when salicylic acid is precipitated from a sodium salicylate solution by addition of HCl. Assuming that both reactions are spontaneous under standard conditions, label the stronger acid, stronger base, weaker acid, and weaker base in each equation.
benzene and toluene for nearly ideal solutions. the boiling point of pure benzene is 80.1oc. calculate the chemical
One of the first steps in the enrichment of uranium for use in nuclear power plants involves a displacement reaction between and aqueous HF.
A sample of 30.0 ml of krypton gas, Kr, is at 756 mm Hg and 25.0 degree celsius. What is the new volume if the pressure is decreased to 325 mm Hg and the temperature is decreased to -12.5 degree celsius?
determine how many grams of phosphorus tri-fluoridenbsp will be producednbsp whennbsp 40.1 g of f2 mix and the reaction
Calculate the number of theoretical plates N in the column of length L in 17 cycles. The observed resolution is 1.51.Now, calculate the plate height in the column in ?m.Estimate the resolution in 2 cycles
Calculate the number of grams of NaOH per 100ml to give a pH8.0 solution if pure water at pH7.0 is used in the experiment. Repeat this calculation for a pH6.0 solution using HCl.
Element X has two natural isotopes: X-6 (6.015amu) and X-7 (7.016amu). Calculate the atomic mass of element X given the abundance of X-7 is 92.5%.
If the sample reacted completely and produced 1931 mL of H2S hydrogen sulfide at 29.82 °C and 759.7 mm Hg, determine the mass percentage of Cadmium sulfide in the mixture?
An ideal gas mixture containing 65.0 mol% carbon dioxide and 35.0 mol% nitrogen monoxide is to be prepared by allowing gaseous carbon dioxide to fill an evacuated 30.0 L cylinder to a pressure of 2.15 bar. The temperature is 415 K.
what is the maximum number of moles that fit in the channel of a processor chip that is 61.7 nm long, 86.6 nm wide and 595 nm thick. Assume that the atoms stack in a simple cubic arrangement.
When 228.4 mg of pure X was burned 627.4 mg of CO2 and 171.2 mg of H2O were obtained. Determine the simplest formula of the compound X.
What is Le Chatelier's principle and explain what happens to the dynamic equilibrium of the system as the cyclohexene is distilled to the receiver flask
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