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A16.6mL sample of a0.500M aqueousnitrous acidsolution is titrated with a0.384M aqueouspotassium hydroxidesolution. What is the pH at the start of the titration, before anypotassium hydroxidehas been added?pH =
how many grams of sodium sulfate should be added to how many grams of sulfuric acid to give 1.00 l of buffer with ph
While ammonium chloride dissolves in water, the solution becomes colder. (A) Is the process endothermic or exothermic? (B) Explain why the solution forms
A blast furnace is the main unit in the production of iron from iron ore. One can view the blast furnace as a process in which the principal desired reaction is:
a 0.1967 g sample of pure ascorbic acid is weighed out and dissolved in 50 ml of distilled water in an erlenmeyer
The expresssion for the freezing point depression of a solution relative to that of the pure solute is shown above. From solutions of known concentrations of p-dichlorobenzene in cyclohexane, you determine Kf, the freezing point depression constan..
A solution of codeine is made by dissolving 7.79 g of codeine in water to make 14.7 L of solution. If the pH of this codeine solution is 9.59, calculate the Kb of codeine.
assume that 3.0g of aniline and 4.5 ml of acetic anhydride are used in the preparation of acetanilide according to the
Explain how would you sysnthesize Heptan-4-ol from 1-butene as well as using butene as your merely carbon source
The molar mass of compound is measured to be 33.4, 35.2, 34.1, 33.9 g/mol in four trials. What is the avg molar mass & calculate standard deviation and %RSD for determination of the molar mass
Calculate the pH of a solution formed by mixing 5.00 mL of 0.015 M HBr with 20.0 mL of 0.200 M HCL.
explain why does atp synthesis occur in the presence of rotenone an inhibitor of one the reactions in the electron
A student is given separate samples of three substances A, B, and C, along with a graduated cylinder containing 50.0mL of water. Each sample has a mass of 200.0g, and the student finds that the volumes of the samples in the water are
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