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Calcule the platinum electrode potential (vs. NHE), immersed in solution containing 0.50 M Br2 KBrO3 0.20 M at pH = 2.5
A sample of helium gas initially at 37.0 degrees C, 785 torr and 1.50L was heated to 65.0 degrees C while the volume expanded to 3.24 L. What is the final pressure in atm.
What is the formula weight of CuI?
the iodine be located on the same carbon with opposite placement
undergoes beta decay with a half life of 3.1 minutes. Assume you begin with 1.0 grams of the thallium isotope, what mass of the isotope will be left after 9.3 minutes have elapsed?
A 320. mL air sample collected at 35°C has a pressure of 550. torr. What pressure will the air exert if it is allowed to expand to 425 mL at 59°C?
flask contains 10.0 mL of HCl and a few drops of phenolphthalein indicator. The buret contains 10.0 mL of 0.220 M NaOH. 1. what volume of NaOH is needed to reach the end point of the titration?
If carbon dioxide gas is collected over water at 25C and 775 torr, what is the partial pressure of the CO2? The vapor pressure of water is 23.8 torr at 25C.
What is the Ce 3+ concentration in a solution formed by combining 50.0 mL of 0.0500 M Ce 3+ with 50.00 mL of 0.150 M IO3-? The solubility-product constant for Ce(IO 3 )3 = 3.2 x 10 E-10.
phosphate combines with sodium hydrogen phosphate to yield sodium tripolyphosphate and water
what is the q solution in Jouls and what is the q rxn in Joules? What is the Delta H rxn in KJ/mo of HNO3 neutralized?
Write charge and mass balances for aqueous Ca3(PO4)2if the species are Ca2+, CaOH+, CaPO4-,PO43-, HPO42-, H2PO4-and H3PO4
A bicycle tire is filled with air to a pressure of 95.0 psi at a temperature of 19 degrees celcius. Riding the bike on asphalt on a hot day increases the temperature of the tire to 58 degrees celcius. The volume of the tire increases by 4.0%. What..
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