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What is the molar solubility of Fe(OH)3(s) in a solution that is buffered at pH 2.50 at 25 degrees C? The Ksp of Fe(OH)3 is 6.3 x 10^-38 at 25 degrees C.
A 12-gram mixture of methane, CH4, and ethane, C2H6, is completely combusted in oxygen. If the total mass of H2O produced is 23.4 grams, what was the approximate mass of the methane in the original mixture
What is the molar concentration of Na+ ions in 0.035 M solutions of the following sodium salts in water
Draw the organic product of the following reaction. Butyric acid with SO2Cl and heat as catalysts
how many NH4Cl moles and how many NaOH moles would you need? About how many more moles of NaOH could you add before the buffer breaks down?
Calculate the percentages of dissociated and undissociated forms present in the following solutions:
Place the video camera on the center spotlight on the right and click the video camera to turn it on. Set the laser intensity to 1 nW and the wavelength to 20 nm. This wavelength is in the x-ray region of the electromagnetic spectrum. The purple d..
Why is it possible to us ehtnol to extract an organic compound from water even though most organics are more soluble in ethanol than in water?
Calculate the change in heat when 17.25 g of water vapor (steam) at 100.0 degrees C condenses to liquid water and then cools to 10.00 degrees C
A 270- flask contains pure helium at a pressure of 755 . A second flask with a volume of 485 contains pure argon at a pressure of 727 torr.
Calculate the volume of O2, at STP, required for the complete combustion of 165 g octane (C8H18) to CO2 and H2O.
Two liters of argon gas at 300 K and 5 atm are expanded against a constant opposing pressure of 1 atm until mechanical equilibrium is achieved.
An ideal gas is compressed isothermically by a force of 85 newtons acting through .24 meter. Calculate values of delta U and q.
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