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Problem- A solution of hydrochloric acid of unknown concentration was titrated with 0.28 M NaOH. If a 100.-mL sample of the HCl solution required exactly 10. mL of the NaOH solution to reach the equivalence point, what was the pH of the HCl solution?
How do I yet start setting this up? Thank you
If you have 1 gram of (-) ethyl lactate and purify it with an enantiomeric excess of 85% yields, wihout any loss of material. How many grams of the (+) enantiomer were separated?
How rapidly would each of the following particles be moving if they all had the same wavelength as a photon of red light (wavelength = 750 nm)
If you have 400mL of .5 M NH3, how many moles of .47 M HCl must be added to the ammonia solution to reach the equivalence point.
If lead, which makes up 86.6% of galena and a particular ore contains 68.5% galena, what ,mass of ore is required to make a lead sphere with a 4.00 cm radius?
What is the concentration of the compound in a solution whose absorbance at 291 nm is A = 0.095 with a sample pathlength of 1.00 cm?
Show by explicit integration that the 1s and 3s wave functions of the hydrogen atom are orthogonal. Note that in integrals over r
Explain what is the molar Gibbs free energy for the formation of water vapor from hydrogen gas as well as oxygen at 400K
The calcium compound that precipitated was measured to be 18.9 milligrams. Determine the grams of the element calcium in one Liter of water.
If 5.00 ml of a solution containing .0400 M iron is placed in a 100.0 ml volumetric flask and filled to the mark with deionized water, what will be the concentration of iron in this new solution?
Problem- Part 1) Calculate the change in enthalpy, in kJ, for the combustion of 6.75 moles of C6H14 in oxygen. Report your answer in scientific notation (X.XXEX) with three significant figures. Do not include units in your answer. The enthalpy of ..
determine the most important part in chemical bond formation, coulomb, J, or the Exchange, K, term. What is the interpretation of this key result
Use the bond dissociation energies in table to calculate an appropriate ^H0 in kilojoules for the reaction of ethylene with hydrogen to yield ethane. H2C = CH2(g) + H2(g) -----CH3CH3(g)
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