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If ammonia gas and 0.365 g of hydrogen chloride gas react to give 0.535 g of solid ammonium chloride explain what is the mass of ammonia that reacted? Explain how do you write a balanced chemical equation for this change as well as how would you show what state each substance is in?
At this temperature, calculate the number of moles of NO2(g) that must be added to 2.76 mol of SO2(g) in order to form 1.20 mol of SO3(g) at equilibrium.
determine the molarity of the solution if 3.00 grams of ammonium sulfate is dissolved in enough h2o to form 300. ml of
How many unit cells are in exactly 1 cm3?
Be sure to calculate what volume of each 0.50M solution should be mixed to give a total volume of 50.0mL and the reactants in the correct stoichiometry.
Silver metal crystallizes in a face centered cubic unit cell. The edge of the unit cell has a length of d = 407pm. What is the radius in picometers of a silver atom
Determine the number of valence electrons in each of the following elements. Ta Fe Cs
what is the mechanism showing electron flow with curvy arrows that includes all steps and intermediates going from starting materials to TPCP, the starting materials are dibenzyl ketone (1,3-diphenyl-2-propanone) and OH
in an electron microscope electrons are accelerated to great velocities. calculate the wavelength in m of an electron
The excess I3- was titrated with 50.00 mL of a 0.02000 M Na2S2O3 solution. What was the mass percent of arsenic trichloride in the original sample?
Using two different methods, determine delta G degree at 25 degrees for the formation of POCl3 from its constituent elements
A solution contains 4.56 g of KCl in 175 mL of solution. if the density of the KCl solution is 1.12 g/mL, what are the mass percent (m/m) and moarity (M) for the KCl solution
How would you prepare a sodium phosphate at pH 7. What species would you use, what concentrations. Remember phosphoric acid has three pKas
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