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A concentrated nitric acid solution has a density of 1.13 g/mL and is 4.95 M. Calculate the % HNO3 by mass in the solution
Select all of the correct statements about the relative acid strengths of pairs of acids from the choices below. HCl is a stronger acid than H2S because Cl is more electronegative than S. H2SO4 is a stronger acid than H2SeO4 because S is more electro..
What combination of properties is responsible for the selection of trinitrotoluene as a military explosive?
One of wavelength 434.2 nm to reach an intermediate level and a second to return to the ground state. What was the wavelength of the second photon emitted
pKa values of phosphoric acid are 2.2, 7.2 and 12.7. A phosphate buffer of pH = 7.4 can be prepared using
although aspirin solutions do not absorb visible light, we are still able to use visible light in an experiment to analyze the purity of aspirin. Why?
Calculate the fraction of atom sites that are vacant for lead at its melting temperature of 327C
How much heat is required to raise the temperature of a mole of oxygen from 298 to 3000 K at constant pressure. The book gives the following values for Cp (specific heat at constant pressure): 29.376 J/(K*mol) at 298 K and 39.884 J/(K*mol) at 3000 ..
The heat of neutralization of HCl by NaOH is H°rxn = -56.2 kJ/mol. How much heat is released when 125 mL of 1.750 M HCl is mixed with 195 mL of 0.667 M NaOH.
Draw all of the stereoisomers that result when (E)-but-2-ene is hydrogenated with D2 over a metal catalyst. If more than one stereoisomer is produced, click the "New" tool on the toolbar after you input each structure so that you can input another..
What is the total sample size (in grams) for a sample of lithium hydroxide which contains 3.66 g of oxygen
Calculate the number of moles of solute present in each of the following solutions: a)245 mL of 1.50 M HNO3 b) 50.0 mg of an aqueous solution tha tis 1.25 m NaCl c) 75.0 g of an aqueous solution that is 1.50% sucrose by mass
a 100- lightbulb is placed in a cylinder equipped with a moveable piston. the lightbulb is turned on for 2.0times10-2
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