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A 50.0 mL sample of 0.55 M benzoic acid, C6H5COOH, a weak monoprotic acid, is titrated with 0.47 M NaOH. Calculate the pH at the equivalence point. Ka of C6H5COOH = 6.5 10-5
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A student is doing the experiment Chemical Formulas of Copper Sulfide by heating copper with excess of sulfur at very high temperatures using a Bunsen burner. Copper and sulfur react stoichiometrically and excess of sulf ...
What wavelength of light (nm) is required to eject an electron with a speed of 2.0 x 10 6 m/s from a metal with a threshold energy of 3.4 x 10 -18 J?
Bob, a sales manager for BuyMore, stopped by The Grill to meet a client for dinner. Bob always enjoyed having an expensive bottle of wine with dinner to impress his clients. This client, Mary, owns an antique import busi ...
What are Transition Metals and what specifically happens to transition metals that results in solutions that give off distinct colors?
What was the initial energy level of an electron if it was excited by a photon of wavelength 38.9µm and jumped to an energy level of 10?
Diagonal relationship and anomalous behaviour of the each element of the periodic table
Question - The solubility of O 2 (g) in water is 4.43 mg of O 2 /100g H 2 O at 20 o C and 1 atm pressure. What pressure of O 2 (g) would be required to produce a saturated solution that is 0.010 M O 2 ?
The atomic masses of Lithium-6 (7.59%) and Lithium-7 (92.41%) are 6.0151 and 7.016 amu, respectively. Calculate the average atomic mass of chlorine. The percentages in parentheses denote the relative abundances.
A 1.526 g sample of a polymer dissolved in 1.00 L of a benzene solution at 22°C has an osmotic pressure of 4.52 x 10-2 atm. What is the molar mass of thepolymer?
Assessment Task You have been tasked to prepare a report for potential investors that allows them to understand the potential social, ethical and legal opportunities and risks of a technology, selected from a list of top ...
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