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Question- A particular monochromatic green light source emits light with a frequency of 594 THz. What is the energy of a photon emitted from this light source?
Write solution with complete explanation of required steps
question why would you expect the heats of neutralization for hcl and nacl reaction and a hno3 and koh reaction to be
How would your results have changed (qualitatively, but explain your reasoning!) id the FAAS standards were all diluted from a stock solution that was reported to be 200ppm but was really only 185
The two following compounds are called crown ethers and they are used to protect alkali metal ions in some reactions. The oxygen atoms in each are joined -(CH2)2- or -(CH2)3- groups.
If you know that each copper atom (radius = 128 pm) has a mass of 1.055 x 10^-22, how many atoms are there in this cube. What fraction of the cube is filled with atoms. Why is there "empty" space in the lattice
An aqueous solution contains 51.4g of C3H7OH in 127.0g of solution. Explain what is the mole fraction of C3H7OH
considering the following two nuclear processes which produce isotopes useful for medical
Calculate the concentration in molarity of argon in a fish tank at 25 degrees Celcius, if the pressure is 1.15atm and the mole fraction of argon in the atmosphere is 0.093. The KH for Ar at 25 degrees Celcius is 1.5*10^-3M/atm.
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
Find the balance reaction and the corresponding E for the oxidation of Fe+2 by dissolved oxygen, O2
The mechanism by which these compounds kill insects and people is unknown. D. These compounds kill insects and people by stimulating acetylcholinesterase, an enzyme of the nervous system.
A solution of .162 M NaOH is used to neutralize 25.0 mL of a H2SO4 solution. if 32.8mL of the NaOH solution is required to reach the endpoint, what is the molarity of the H2SO4 solution? H2SO4(aq)+2NaOH(aq)>Na2SO4(aq)+2H2O(l)
What is the hydronium ion concentration in an aqueous hydrochloric acid solution that has a pOH of 11.540 ?
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