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The pKa of hydrochloric acid is about -6. On the basis of this information, would aqueous sodium chloride be sufficiently basic to deprotonate benzoic acid? Explain your reasongin.
Is there a list of hazardous or safe chemicals for Thailand? Where can I find it?
Determine the expression for the rate of reaction with respect to each of the reactants and products.
Use the Born-Haber cycle outlined in Section 9.3 for LiF to calculate the lattice energy of NaCl. (The heat of sublimation of Na is 108 kJ/mol and ?Hof = -411 kJ/mol
An atmospheric chemist studying the pollutant SO2, places a mixture of SO2 and O2 in a 2.00 L container at 800k and 1.90 atm. when the reaction occurs, gaseous SO3 forms, and the pressure falls to 1.65 atm
A solution of 2.00 g of para-dichlorobenzene (a clothes moth repellant) in 50.0 g of cyclohexane freezes at 1.05 C. What is the molar mass of
An open flask sitting in a lab fridge looks empty, but we know that actually it is filled with a mixture of gases called air.
a boy wants to prepare an aqueous solution of sucrose with a vapor pressure of 15.0 mm hg at a temperature of 20 degree
Erythrocytes phosphorylate glucose to glucose 6-phosphate with the help of the enzyme hexokinase instead of glucokinase. Hexokinase has a Km = 0.04 mM.
Find the number of moles of water that can be formed if you have 150mol of hydrogen gas and 70mol
At 25 c and 1.0 atm, 0.25 g of a gas dissolves in 1.00 L of water. What mass of the gas dissolves in 1.00 L of water at 25 c and 3.0 atm?
Given the concentration of either hydrogen ion or hydroxide ion, use the ion product constant of water to calculate the concentration of the other ion at 298K.
The nitrogen in a 4-tablet sample that weighed a total of 7.50 g was converted to ammonia by Kjeldahl digestion, followed by distillation into 100.0 mL of 0.1750 M HCl. The analysis was completed by titrating the excess acid with 11.37 mL of 0.108..
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