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Approximate the smallest kinetic energy in J that an electron would process if it were inside the nucleus of a hydrogen atom with no potential energy. As a first approximation, you may believe the nucleus as being a one-dimensional box of a length 10-14 m, with walls that are infinitely high. Suppose now that the electron is attracted to the proton. And they are separated by 10-14 m. Utilize coulomb's law to estimate the attractive energy. Based on results do consider the electron could be found within the nucleus? Explain
Laboratory-grade diethyl ether contains small amounts of ethanol (1-2%). Is this grade of solvent suitable for the preparation
How many grams of DRY alum can be obtained from 20.0g of aluminum when the reactions proceeds with 60.0% yield? How many grams of WET alum can be obtained from 20.0g of aluminum when the reactions proceeds with 60.0% yield
Determine the molar mass of carbon dioxide by measuring the mass of an Erlenmeyer flask full of the gas. The following calculations are intended to familiarize you with the general procedure:
A solution made by dissolving 28 mg of insulin in 5.5 mL of water has an osmotic pressure of 15.5 mmHg at 25C. Calculate the molar mass of insulin.
fifty mililiters of 1.00m hno3 was added to 50.5 ml of 1.00m of naoh solution. calculate the mass of the reaction
What is the molarity of a solution that contains 35.0 g of vitamin B1 hydrochloride (molar mass = 337 g/mol ) in 110 g of solution?
What is the heat of vaporization(kJ/mol) if it takes 3,452 J of heat to completely vaporize 2.68 moles of the liquid at its boiling point?
Mild acid treatment of this compound produces a solution which reduces periodic acid. What is the structure of Michelleose? Explain your reasoning
0.0431 moles of sucrose c12h22o11 are dissolved in 400.0 grams of h2o. the solution density 1.013 gml and suppose that
what is the minimum number of moles of sodium hydroxide required of this hydrolysis reaction to go to completion and what is the limiting reagent in this experiment?
A Geiger counter is placed 1cm from a radioactive spill and gives a reading of 12,000 cpm. At what distance is the intensity of radiation 40 cpm
Alkynes can be hydrated in the presence of acid and HgSO4, by electrophilic addition of a molecule of water to the triple bond.
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