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The barometric pressure in a cavern was measured using a mercury barometer. A value of 28.2 inches of Hg was obtained. What's this pressure in a) SI uunit of pressure and b) in atm unit? Round off answers to correct number of significant figures
Calculate the hydronium concentration for a solution prepared by dissolving 0.15 mol of benzoic acid (C6H5COOH) and 0.30 mol of sodium benzoate (C6H5COONa) in 1.00 L of solution. (Ka of C6H5COOH = 6.5 x 10-5)
Infrared radiation from the sun has a wavelength of 6200 nm. Calculate the energy of one photon of that radiation.
What is the molecular form that predominates in the blood. Could this molecule easily diffuse through th ehydrophobic lipid membrane of a kidney cell. Explain.
Why is the intercept of a calibration curve of absorbance vs concentration not zero?
Which emits more SOx per unit amount of electricity produced: a coal-fired plant with a 90% efficient SO2 scrubber or an oil-fired plant with no scrubber
Calculate the pH of a solution prepared by mixing equal volumes of 0.21M methylamine (CH3NH2), Kb = 3.7X10^-4 and 0.61M CH3NH3Cl
2c2h6 7o2---gt 4co2 6h2o if the reaction produces 2.75 mol of h2o how many grams of co2 are also
Give the structure that corresponds to the following molecular formula and 1H NMR spectrum: C5H10: 1.5, s
a solution is prepared by mixing 50.0 ml of 0.30 m pbno32 with 50.0 ml of 1.4 m kcl. calculate the concentrations of
What is the relation between the standard deviation and the precision of a procedure. What is the relation between standard deviation and accuracy
How do you go from 1332.6 kJ to 1.3x10^6J? its the only thing that doesnt make sense to me.
What is the volume occupied by 25.0 gm of Ar (g) at a temperature of 301K and pressure of 1.30atm.
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