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Write a balanced chemical reaction to demonstrating that CaO is a basic oxide. b) Write a chemical reaction demonstrating that SO2 is an acidic oxide. c) Write balanced chemical reactions demonstrating that Al2O3 is amphoteric.
190 mL of an HCl solution with pH of 3.60 is added to 200 mL of an HNO3 solution. The resulting pH is 1.40. What was the pH of the original HNO3 solution?
A student was preparing to recrystallize a solid using mixed-solvent recrystallization. He planned to dissolve the sample in boiling methanol, and then add hot pentane to induce crystallization
Calculate the mass of formed from the unbalanced reaction? A solution is prepared by mixing 100.0 mL of 0.45 M NaCl, 100 mL of 0.082M, and enough to bring the total volume to 400.0 mL
The benzene-toluene system obeys Raoult's law because benzene and toluene molecules have similar shapes and electronic structures
Based on this equation, what is the value of the Rydberg constant (R) in m^-1? (5 significant figures)
what is the molecular formula and empirical formula of NH2Cl, molar mass = 51.5 g/mol
Solids do not "flow". What does this behavior imply about the speeds at which the individual solid particles are moving relative to each other?
Doubling the distance between an individual and the source of radiation reduces the radiation exposure to one-fourth the original value.
Determine What is the final concentration and calculate what is the Ksp of this salt at temperature of 25 degrees Celsius?
How much PV work is done (in kilojoules), if 90.0 g of ethylene and 125 g of HCl are allowed to react at atmospheric pressure and the volume change is -71.9 L?
When given a problem with an aqueous solution containing Na3PO4 and you need to find the boiling point of the solution only knowing the solution is 18.7% by mass Na3PO4 and the Kb for water is .512 It also says to consider if the solute is an elec..
What is the molality of a solution formed by dissolving 1.70 mol of KCl in 15.0 mol of water (MM of water = 18.02 g/mol),
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