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What is the longest wavelength of light that can break the O-H bond? The bond dissociation energy of an O-H bond is 463kj/mol
Dissolving 4.69g of an impure sample of calcium carbonate in hydrochloric acid produced 1.07 L of carbon dioxide (measured at 20.0 degrees Celcius and 737mmHg). Calculate the percent by mass of calcium carbonate in the sample.
If the original sodium tartrate solution had a concentration of 1.00 M instead of 0.100 M, what would the concentration of copper be in a solution created by combining 10 mL of it with 10 mL of the 0.100 M copper (II) sulfate solution.
0.134 mole of kcl and 0.248 mole of cacl2 were dissolved in water. calculate the total number of moles of cl- ions in the solution.
Write balanced, net ionic equations when the following compounds are mixed. Indicated mixtures where no reaction is expected with the notation "no rxn".
Using the following reaction: OH- + HC2H3O2 ---> H2O + C2H3O2- a 75.0 mL sample of potassium hydroxide, KOH, of unknown concentration is titrated with 42.5 mL of 0.575 M acetic acid.
What is the mole fraction of benzene in the vapor above the solution described in part (a)
The [OH-] of a solution is 3.6 x 10-4 M. What is the [H3O+]? Is the solution acidic, basic, or neutral. Write the correct molecular formula for the structure :Br--CH2--CH--OCH3--CH3.
explain why the chemical formulas AlCl3, PCl3 and CoCl3 are so similar, yet their names are so different.
Write the balanced complete ionic equations and net ionic equations for the reactions that occur when each of the following solutions are mixed. (NH4)3PO4(aq) and CaCl2(aq)
The smallest observed frequency for a transition between states of an electron in a one dimensional box is 3.5 x 10 (14) s -1. What is the lenght of the box
The Solubility of Mg(OH)2 (s) in wataer at a certain temperature is 1.0 x 10^-4 mol/L. Calculate the value of Ksp for Mg(OH)2 (s) at this temperature.
What is the pH of the solution at equivalence point. How many mL of HCl will need to be added to the methlamine, CH3NH2 solution to reach a pH of 10.64. What will the major species in solution be when 1198.75 mL of HCl has been added to the base s..
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