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What is the pH of a 10^-5 M Co(ClO4)2 solution? Check your answer to be certain that Co(OH)2(s) will not precipitate. (Assume no carbonate is present). The following are for the hydroxyl complexes: Log Beta 1 = 3.8; Log Beta 2 = 9.2; Log Beta 3 = 10.5; Log Beta 4 = 9.7; Log Kso = -14.4.
Sodium sulfate is slowly added to a solution containing 0.0500 M Ca2+ and 0.0400 M Ag+. What will be the concentration of Ca2+ when Ag2SO4 begins to precipitate
Compute the enthalpy change for the dissolution of ammonium nitrate express your answers in units of kJ/mol.
Consider that a benzene molecule could fit nicely within a two-dimensional square box with each side having length of 5 degree A. a. Calculate the four lowest energy levels for an electron confined
A certain quantity of gas occupies 61.3 mL at 68C. If the pressure remains constant, what would be the volume of the gas at 128C?
Suppose that 0.650mol of methane, \rm CH_4(g), is reacted with 0.800mol of fluorine, \rm F_2(g), forming \rm CF_4(g) and \rm HF(g) as sole products. Assuming that the reaction occurs at constant pressure, how much heat is released
If a reaction between Zn and I2 takes place, are the physical and chemical properties of the substances isolated during and after mixing the same as or different from those of Iodine and Zinc? Explain using the reaction as an example.
Grams and centimeters in the metric system have been defined so that the density of water at 3.98 C is exactly 1. At 20 C, the density of water is 0.9982 g/ml. What percent error results from the assumption that the density of water is 1.000 g/ml ..
The half -life of 14C is 5730 years. A sample taken for radiocarbon dating was found to contain 56 percent of its original 14C. What was the age of the sample? (*Hint: The decay follows first order kinetics).
What is the FORMULA for the limiting reagent? c.What amount of the excess reagent remains after the reaction is complete? IN GRAMS
How many molecules of ice at 0 degrees celsius can be melted from the complete transfer of the heat involved when 25.6 Grams of nitrogen is reacted with 34.5 L Of hydrogen gas at STP.
Sn2 reactions occur at different rates depending on the structure of the substrate in the reaction . Would an Sn2 reaction occur at a faster rate on a primary or a tertiary substrate ? Briefly. Explain your answer
Give the molecular formula of a hydrocarbon containing five carbon atom containing five carbon atoms that is (a.) an alkane, (b.) a cycloalkane, (c.) an alkene, (d.) an alkyne
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