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Jess reacts 25.0 grams of substance X with 40.0 mL of 2.0 mol/L of sodium hydroxide solution. The reaction yielded 2.5 grams of calcium hydroxide. Calculate the theoretical yield of calcium hydroxide and %Yield for the reaction.
a 14.0 g sample of iron was heated from 10.0C to 20.0C it absorbed 15.2 of energy as heat based on this data what is the specific heat of this piece of iron?
What mass of potassium chromate is needed to add to exactly 500g of water to produce a solution with vapor pressure of 21.50 torr at 24 C
Compute the pH after the addition of 0.0mL, 5.00mL, 18.0 mL, 25.0mL, 38.0mL, 50.0mL and 65.0 mL of 0.200 M NaOH (aq) to 50.00mL of 0.100 M malic acid, L-hydroxybutanedioic acid. pka1=3.459, pka2=5.097
Assume you accidently add too much NaOH during the titration. You then add a volume of HCl precisely equal to ½ the volume of NaOH actually utilized in the titration used in the titration. Explain what effect does the have on the Ka
Write a short notes on neutral ionophores and give some examples
Calculate the molarity (mol/L) of CO32- when SrCO3 is placed in a 0.0340 M SrCl2 solution. The equation represents the solubility process.
Write a balance molecular equation for sodium iodide and sulfuric acid ( states of reactants and products must be shown)
Show by explicit integration that the 1s and 3s wave functions of the hydrogen atom are orthogonal. Note that in integrals over r
Explain how mass effects act to lower the carbonyl frequency, as well as how inductive and hyperconjugation effects act to raise the carbonyl
What dansylated amino acids would be isolated after reaction of S-F-H-Y-W-C-T-L-C-K-L-I-N-D-S with dansyl chloride an the complete with hydrolysis
Calculate the percentage composition by mass of each of the elements in sulfuric acid. Report each of your answers to 4 significant figures
Write a balanced chemical equation showing the formation of the salt, Na3PO4, from the reaction of the appropriate strong acid and strong base, and name each compound in the equation.
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