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A student does an experiment to determine the molar solubility of lead(II) chloride. He constructs a voltaic cell at 298 K consisting of 0.864 M lead nitrate solution and a lead electrode in the cathode compartment, and a saturated lead chloride solution and a lead electrode in the anode compartment. If the cell potential is measured to be 5.24×10-2 V, what is the value of Ksp for lead chloride at 298 K based on this experiment?
A steel cylinder with a volume of 15.0L is filled with 41.6 g of nitrogen gas at 25°C. Part A
Calculate the apparent degree of dissociation of the NH4Cl if the freezing point of this solution is -15.3OC?(Molal freezing point constant =1.86 0C)
using a sample of river water sample analyzed for total inorganic carbon ,The river pH= 7.1 and an inorganic C concentration of 6.97 mg C/L.c
why helpful.source site should show IGC,ILC, Trouble shooting and column packing
Oxygen interferes with the absorption of nitrogen Problem- Although the atmosphere contains 78% nitrogen, most plants cannot use it as a source of nitrogen for growth because
When distilling a pure compound, the boiling temperature remains constant although you are heating the flask. Why?
The normality of 10% Acetic acid is 20ml of a 0,5M Hcl is Mixed with 30ml of 0,3 M hcl the molarity of given solution is.
Explain A solution containing 25 mL of ammonia at unknown concentration is titrated to the equivalence point using 23.24 mL of 0.23 M HCl. Define what was the original concentration of the ammonia solution
A 2.60 mole quantity of NOCl was initially in a 1.50 L reaction chamber at 400°C. After equilibrium was established, it was found that 22.0 percent of the NOCl had dissociated
a sample of gas contains 0.2000 mol of c2h4g and 0.2000 mol of br2g and occupies a volume of 13.7 l. the following
The reversible conversion of phosphorus pentachloride gas into phosphorus trichloride and chlorine gases has Kc = 2.68 at exactly 340oC. If 8.42mmol PCl5 are placed into a 125ml flask, what will be the partial pressures of each component at equili..
In the accompanying cylinder diagram a chemical process occurs at constant temperature and pressure. Is the sign of w indicated by this change positive or negative?
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