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Compute the concentration of oxalate ion (C2O4) in a 0.175 M solution of oxalic acid (C2H2O4). For oxalic acid, Ka1 =6.5*10-2 and Ka2 = 6.1 * 10-5
a plutonium-239 atom may emit a photon of light with a wavelength of 24.0 pm when it undergoes nuclear fission. What is the frequency of this radiation?
Calculate the number of coulombs required to produce 6.53 g of Hg from an aqueous solution of Hg2+
Calculate the minimum chloride ion concentration needed to initiate precipitation of PbCl2 from a solution that contains 0.01M Pb^2+ (aq).
Which choice lists two health effects expected from the depletion of the ozone layer. asthma lung cancer skin cancer cataracts emphysema 1 and 5 2 and 3 3 and 5 3 and 4 4 and 5
One Kg of air is compressed from V=2.0m^3 and P=400kPa to .... V=.547m^3 to P=1200kPa. find the work during the compression process
Suppose there are two known compounds containing the generic elements X and Y. You have a 1.00-g sample of each compound. One sample contains 0.32 g of X and the other contains 0.41 g of X. Identify plausible sets of formulas for these two compoun..
Calculate the % ionization of nitrous acid (HNO2) in a solution that is 0.222M in nitrous acid and 0.278M in potassium nitrite (KNO2). Ka for nitrous acid= 4.50 times 10^-4
Part A What is the reaction that corresponds to the first ionization energy of rubidium, Rb ? Part B What is the reaction that corresponds to the electron affinity of iodine, I
If I add 1.65 L of water to 112 grams of sodium acetate what is the molality of NaC2H3O2 in this solution?
Explain while a coil of red-hot platinum is exposed to the air, it cools quickly. While exposed to ammonia gas the coil continues to glow red-hot. Explicate this observation.
An important industrial for synthesizing the ammonia used in agricultural fertilizers involves the combination of N2 and H2 N2 (g) + 3H2 (g) 2NH3 (g) (Kc =4.29 *10^8 at 52 degrees C)
List these compounds in order of increasing molar solubility in water show your calculations.
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