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If 95.9 mL lead(II) nitrate solution reacts completely with excess sodium iodide solution to yield 0.315 g precipitate, what is the molarity of lead(II) ion in the original solution?
I need proficient help in the following problems.
Compute the vapor pressure of a solution of 78 g of benzene as well as 46 g of toluene at 90 oC. Is the boiling point of this mixture higher or lower than 90 oC at an atmospheric pressure of 1 atm
Describe the apparent relationship between H3O and OH concentrations when an endpoint is reach in acid-base titration.
The men's world record for swimming 1500.0m in a long course pool( as of 2007 is 14 min 34.56 s. At this rate, how many seconds would it take to swim 0.550miles. (1 mi =1609m)
Calculate the molar solubility of bbarium sulfate, BaSO4, in 0.010 M Sodium Sulfate, Na2SO4, solution at 25C. Compare this to the solubility of BaSO4 in pure H2O. What is the common ion?
A solution is prepared from 4.5729g of magnesium chloride and 43.244g of water. The vapor pressure of water above this solution is found to be 0.3628atm at 348.0 K. The vapor pressure of pure water at this temperature is 0.3804 atm.
What are the experimental conditions of T and P that willbe used to calculated the mass of air in the flask? b) Calculate the density of air at the experimental conditiosnidentified in part a. c) Calculate the mass of air in the flask before the liqu..
Order the following compounds according to their expected lattice energies: AlBr^3, MgBr^2, LiBr, CaO
What are the relative percentage of HCN and cyanide ion in a dilute aqueous solution at pH+9.2/ At pH=10.2
calculate the molarity of a solution of glycerol made by dissolving 69.000 ml glycerol at 15 degrees c in enough water
The kidneys function to eliminate ammonia from the blood. Based on the pK value, what is the molecular form that predominates in the blood? Could this molecule easily diffuse through the ehydrophobic lipid membrane of a kidney cell? Explain.
Calculate the osmotic pressure of a solution containing 25.9g of glycerin (C3H8O3) in 243.5mL of solution at 310K.
How many milliliters of 0.121 M H2SO4 are needed to neutralize 0.220g of NaOH? If 42.5mL of 0.220 M HCl solution is needed to neutralize a solution of Ca(OH)2, how many grams of Ca(OH)2 must be in the solution?
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