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Calculate the number of moles of ammonia absorbed by a boric acid solution if 3.25 ml of 0.0025 M H2SO4 were needed to titrate the solution to the end point ( Assume both hydrogens of the sulfuric acid react.)
when 9.8 g of aluminum oxide (Al2O3) decomposes, how many grams of aluminum metal are produced?
What are the various uses of radioactivity in healthcare? What are the future trends in healthcare with respect to the use of radioactivity?
Calculate molality and mass percent of alcohol in the mixture. A solution of ethanol, C2H5OH, in water has a concentration of 1.996 mol L-1. At 20.0 ºC its density is 0.9677 g mL-1
State the chemical reaction that took place in the patient's body.
using all atoms and bond structure, show an ionization reaction for benzoic acid
how many moles of solute are present in 700ml of 0.230M SrBr2
Aspirin (C9H8O4) is produced through the following reaction of salicylic acid (C7H6O3) and acetic anhydride (C4H6O3). C7H6O3(s) + C4H6O3-> C9H8O4(s) + HC2H3O2
What is the OH- in a solution that has a pH of 4.92? Give your answer to 3 significant figures using E-notation (i.e., 1 number before and 2 after the decimal point)
An element has a mass of 207 and has 125 neutron in its nucleus. how many protons and electrons does it have and where are they located
If the absolute temperature of a gas is doubled, what happens to the root-mean-square speed of the molecules?
What range of magnetic field strength would be required to cover the mass range between 16 and 625, for singly charged ions, if the accelerating voltage is held constant?
In a reaction between pure acetic acid and sodium bicarbonate, 27.2 grams of sodium bicarbonate was added to 12.0 mL of acetic acid. Which reactant is the limiting reactant in this reaction?
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