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What concentration of the lead ion, Pb+2 , must be exceeded to precipitate PbF2 from a solution that is 1.00*10^-2M in the fluoride ion, F- ? Ksp for lead fluoride is 3.3*10^-8
A solution is prepared by dissolving a 0.56 g benzoic acid (C6H5CO2H, Ka=6.4*10^-5) in enough water to make 1.0 L of solution. Calculate [C6H5CO2H], [C6H5CO2],[H], [OH] and
Which is the anode and which is the cathode of a concentration cell Au/Au^3+ , where the Au^3+ is 0.89 M in one half cell, and 0.14 M in the other. What half reactions occur
Assume that it takes 64.25 mL of a 0.1555 M HCl solution to fully neutralize the calcium carbonate from one Tums tablet. How many milligrams of calcium carbonate are in the
1. An electron traveling at 5.8x10^5 m/s has an uncertainty in it's velocity of 3.00x10^5 m/s. What is the uncertainty in this position? 2. The smallest atoms can themselves
At 70K, CCL4 decomposes to Carbon and Chlorine. The Kp for the decomposition is 0.76. Find the starting pressure of CCl4 at this temperature that will produce a total pressure
A gas occupying a volume of 695 mL at a pressure of 0.970 atm is allowed to expand at constant temperature until its pressure reaches 0.541 atm. What is its final volume?
Problem- For the reaction calculates how many moles of the product form when 0.031mol of O2 completely reacts. Assume that there is more than enough of the other reactant. 2Ca
Problem- Silicon has three naturally occurring isotopes(Si-28, Si-29, and Si-30). The atomic mass and natural abundance of Si-28 are 27.9769 amuand 92.2 %, respectively. The
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