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Le Chatelier's Principle lab
Describe the effect on the solubility of Mg(OH)2 when solutio of HCl, NaOH, and NH3 are added individually to three separate sample Mg(OH)2.
Calculate the pH after the addition of a total 20.0, 30.0, and 70.0 ml of NaOH has been added.
The organic compound called aluminon is used as a reagent to test for the presence of the aluminum ion in aqueous solution
Given that each neurotransmitter molecule that diffuses to the surface of an electrode releases two electrons. The average burst of charge measured at the electrode is 37fC. How many molecules are released in an average burst
from its known water solubility and density determine themaximum equilibrium aqueous phase concnetration and the
A 50.0 mL sample of vinegar (density = 1.06 g/mL) was diluted to 500.0 mL. Titration of a 50.0 mL aliquot of this solution required 42.5 mL of 0.0900 M NaOH to reach the end point. Determin the acid content of the vinegar as wt. % acetic acid.
For molecular rotation the symbol J rather than l is utilized as the quantum number for angular momentum. A 1H35Cl molecule whose bond length and force constant are 127 pm and 516 N/m, respectively has the rotational quantum number n=0.
The burning of a piece of paper in air (to produce CO2 and H2O vapor) is a spontanous reaction exothermic reaction. What would be necessary to start this reaction
Problem- What is the percent yield of the reaction in which 76.0 g tungsten (VI) oxide (WO3) reacts with excess hydrogen gas to produce metallic tungsten and 7.88 mL of water (d= 1.00 g/mL)
Using the average initial pH of your acetic acid solutions, and the average molarity of those solutions, calculate a value of Ka for acetic acid. when initial pH is 2.63 and average molarity is 0.06475.
0.10 grams 1, 3, 5-trichlorobenzene, 0.10 grams 2- chloronaphthalene as well as 0.10 grams biphenyl, dissolved individually in three 100ml samples of benzene.
A 20.0-mL sample of 0.200 M HBr solution is titrated with 0.200 M NaOH solution. Calculate the pH of the solution after the following volumes of base have been added.
Steam is condensed at 100 °C and the water is cooled to 0 °C and frozen to ice. What is the molar entropy change of the water
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