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Please respond to ONE of the below questions in detail. These questions are taken from Sam Kean's "Questions and Topics for Discussion". Your response needs to be 1-2 pages long, or approximately 700-900 words. Consider the question and articulate your response thoroughly.
A photomultiplier is being used to detect 770 nm infrared photons from the excitation of potassium. These photons impinge on a 2 cm square cesium metal surface inside the photomultipler, there is enough energy to release electrons from this metal...
Dehydration upon heating with concentrated sulphuric acid without carbocation rearrangement?
Given that silicon and oxygen form a diatomic molecule of siO, write the orbital (electron) configuration for the molecule
Lead is a toxic metal that affects the central nervous system. A Pb-contaminated water sample contains 0.0011% Pb by mass. How much of the water (in mL) contains 150 mg of Pb. The density of the solution is 1.0 g/mL.
Butyric acid is responsible for the odor in rancid butter. A solution of 0.25 M butyric acid has a pH of 2.71. what is the Ka for the acid
The deltaH for the dissolution of solid sodium hydroxide in water is -44.4 kJ/mol. What is the final temperature of a solution when 13.9 g of NaOH dissolves in 250.0 g of water in a coffee-cup calorimeter. The initial temperature is 23.0 °C. Assu..
reaction takes place in acidic solution, \rm H_2O{(l)} and \rm H^+{(aq)} will be involved in the reaction. Places for these species are indicated by the blanks in the following restatement of the equation
What is Kd of a substance X if 25 ml of a 0.015 M aqueous solution of X is extracted with 10.0 ml of ether. The entire 25 ml of water (aqueous solution) is titrated and it is found that the concentration of X after extraction is 0.005 M. The molar..
calculate the minimum number of grams of propanec3h8 that must be combusted to provide the energy necessary to convert
write the formula of the conjugate base for each of the following acids: a)HCO3^- b)CH3-NH3^+ c)HPO4^2- d)HNO2 e)HBrO
Calculate the freezing point depression constant (Kf) of phenol ? c)If 24.5899g of unknown was added to 838.72g of phenol to prepare the solution, calculate the molar mass (MM) of the unknown.
in hundreds of thousands of homes across the country family swimming pools and spas require sanitation and maintenance
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