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A 12.7 g sample of an aqueous solution of perchloric acid contains an unknown amount of the acid.
If 25.0 mL of 0.431 M sodium hydroxide are required to neutralize the perchloric acid, what is the percent by mass of perchloric acid in the mixture?
Problem- What is the proton concenteration in a solution of 102.7 mM acetic acid (this concentration represents the sum of both the acetic acid and the deprotonated acetate) at pH 5.77 if the pKa of acetic acid is 4.76. Report your answer in micro..
A geological sample is found to have a Pb-206/U-238 mass ratio of 0.337/1.00. Assuming there was no Pb-206 present when the sample was formed, how old is it. The half-life of U-238
Identify the group of elements that corresponds to the following generalized electron configuration
Determine the number of electrons transferred in the following reaction when it is correctly balanced.
Explain the relative trends in acidities of the compounds of the formula HXOn for compounds with identical central atoms, X, but differing values of n
It takes 27.22 mL of NaOH to reach the endpoint. What is the equivalent weight of the acid?
Calculate the concentration of ions in the following saturated solutions. Al3+] in Al(OH)3 solution with [OH -] = 2.6 10-9 M
what is the concentration of sodium ions in the resulting solution?
Gallium has two common isotopes Ga-69 and Ga-71. Suppose we wanted to use the Ga-71 isotope for some reason, and obtained a pure 6.0g sample of Ga-71.
Until 200 yr ago manufactured iron contained charcoal created from freshly cut wood that was added during the smelting process. As a result of this practice older samples of iron can be dated accurately utilizing the carbon-14 method.
Aluminum metal dissolved in hydrochloric acid as follows: 2Al(s) + 6HCl(aq) → 2AlCl3(aq) + 3H2(g)
In an experiment that is performed you use 1-hexene and is reacted with H2SO4 with water as the solvent. The product formed is 2-hexanol, is this an example of 1,4 addition, or proceeds via a carbanion,
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