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How many grams of potassium may be formed by the passage of 4.56 amps for 1.47 hours through an electrolytic cell that contains a molten potassium salt? How many grams of gold may be formed by the passage of 2.96 amps for 4.64 hours through an electrolytic cell that contains a molten Au(III) salt?
A wooden artifact from a Chinese temple has a activity of 43.3 counts per minute as compared with an activity of 58.2 counts per minute for a standard of zero age
which is present in all living tissue radioactivelydecays via a first order process. a one-gram sample of woodtaken
The blue color of the sky is due to the scattering of sunlight by the molecules in the air. The blue light has a frequency of about 7.5 x 10^14 Hz.
Household bleach is a 5.0 mass % aqueous solution hypochlorite, NaOCl. What is the mole fraction of the NaOCl in the bleach
Loudspeakers A and B are vibrating in phase and are playing the same tone, which has a frequency of 309 Hz. They are set up as in the figure, and point C is located as shown there. The distance between the speakers and the distance between speaker B ..
The two alkenes below react with HI at different rates. Draw the structural formula of the MAJOR product formed by the alkene having the HIGHER reaction rate
assume you have a solution that is 0.020m in both cd2ions and ni2 ions. if you add sulfide ions cds and niswill
An electrical heater delivers 7.880 kJ of energy (as heat) to a system consisting of the gas inside a cylinder having a movable piston. As a result, the piston moves against a constant external pressure such
Which of the seven Anions will be the hardest to detect (same anions as above), Why do you think this? If two or more are possible explain why.
Uranium (U), with a mass number of 230 and an atomic number of 92, decays by emission of an alpha particle. Identify the product of the nuclear reaction by providing its atomic symbol, mass number, and atomic number.
A buffer solution contains 0.5 M HA pka=8 and 0.25M NaA. What is the pH after 0.1 mol of HCL is added to this solution, giving a total final volume of 2L
Calculate the entropy and the free energy of mixing for ethanol and water at 25c if the mass percent of ethanol is 15
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