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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?
[Ca2+]=?
What percentage of the Ca2+ can be separated from the Ag+ by selective precipitation?
Calculate the heat required to convert 50.0 g of C2CL3F3 from a liquid at 20.00 degrees celcius to a gas at 75.00 degrees celcius.
Given the following thermochemical equations, C2H2(g) + 5/2 O2(g) -----> 2CO2(g) + H2O(l) enthalpy = -1299.5 kJ
Consider equimolar samples of different ideal gases at the same volume and temperature. Gas A has a higher molar mass than gas B.
Write net ionic equations for each of the precipitation reactions used to identify each of the cations in Group A (Al3+, Fe3+, and Mn2+) and B (Ba2+, Ca2+, and Mg2+).
Carbon monoxide and water vapor, each at 190 Torr, were introduced into a 250 mL container. When the mixture reached equilibrium at 690 ?C, the partial pressure of CO2(g) was 108 Torr.
Calculate the concentration of OH- ions in a HCl solution whose hydrogen ion concentration is 1.5M
When heating the acetone in a water bath, why must there be a hole in the foil cap
General Chemistry The pH of a solution of NH3 and NH4Br is 8.90. What is the molarity of NH4Br if the molarity if NH3 is 0.016M
The PF5 molecule is known to have a trigonal bipyramidal shape. Explanation of its bonding includes all of the following EXCEPT: A. Bond Angles of 90 degrees
If the density of sulfuric acid is 1.05 g/ml in the original 1 L solution, then find the weight percent of sulfuric acid in solution.
A certain carbon-hydrogen compound contains 84.1% C by mass and the remainder is hydrogen. What is the empirical formula of the compound
Calculate the molar solubility of strontium chromate in water at 298 K if Ksp = 3.6 * 10-5.
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