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calculate the wavelength of the fifth line in the hydrogen atom paschen series. calculate the energy released in the transition
what is the limiting reagent and the volume of CO2 formed when 11 L s2 reacts with 18 L O2 to produce Co2 gas adn SO2 gas at STP
Do the three staggered/eclipsed conformations of butane have the same ENERGY?
A 30.0- sample of this glucose solution was diluted to 0.500 . How many grams of glucose are in 100. of the final solution?
a 2.00 kg sample of pure water at 20.0 degree celsius absorbs 3.53 kJ of heat. What is the final temperature of the water?
what is the quantity in grams of formic acid and sodium formate necessary to make 500 mL of a buffer that has a formic acid concentration of .75 M and a sodium formate concentration of .75 M?
How many milliliters of 0.105 M HCl are needed to completely neutralize 60.0 mL of 0.108 M Ba(OH)2 solution?
Prepare 3 liters of 0.5 M glutamic acid buffer, with pH 4.1, from solid glutamic acid (pKa=4.2) and 2 M NaOH. How many grams of solid glutamic acid (MW=147 g/mol) would you have to use and how many mls of 2 M NaOH would you need?
A 52.2 g block of an unknown metal at 85.5oC was dropped into an insulated vessel containing approximately 37 g of ice and 27 g of water at 0oC. After the system had reached equilibrium
Do you expect CN- anion to be affected by a magnetic field? Explain your reasoning. (d) What is the bond order of the anion CN- ? (e) What is the bond order of the neutral CN?
In a 0.34 M solution of sodium acetate, what concentration of hydronium ions comes from the self-ionization of water? pKb for acetate anion is 9.246
an LC analysis with a 30.0cm column yields the tabulated data. what is the resolution between peaks A and B?
Calculate the de Broglie wavelength of the bullet traveling at 1289 miles per hour. Physical constants can be found here.
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