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A corrosion technologist pipetted a 100.00 mL hard water sample and titrated it with 37.64 mL of 0.01 M EDTA solution for a total hardness endpoint, and 29.32 mL of 0.01 M EDTA solution for a calcium endpoint. Calculate the concentration of magnesium and calcium in ppm. Record your answers as ppm Mg2+, and Ca2+ espectively. For each answer indicate the ppm as CaCO3 also.
a solution is prepared by mixing 0.0400 mol ch2cl2 and 0.0800 mol of ch2br2 at 25degc. assuming the solution is ideal
What would happen to the solubility of potassium chloride in water as the water temperature increased from 25 degrees celsius to 100 degrees celsius?
Calculate the equilibrium concentrationsfor this dissolution reaction if one mole of the solid is placed in 1.00 L of water (assume adding the solute does not change the volume of the solution
the standard electrode potentials calculate the standard free energy (kJ) for the given reaction.
When no single electronic formula can be drawn for a stable molecule so as to maintain the octet rule and still fit the observed properties, the situation is best described in terms of
FE3+ SCN FeSCN2, how will adding potassium thiocyanate (KSCN) initially change [Fe^3+], [SCN], and [FeSCN^2+). how should equilibrium system respond to the change
A compound is heated to produce gas whose molecular mass is to be determined. The gas is collected by displacing water in a water filled flask inverted in a trough of water
How could you ascertain wheter the alcohol or the carboxylic acid furnishes the hydroxyl group that appears in the molecule of water
Balance each of the half reactions in acidic solution a)Cu(s)>Cu^2+(aq) b)SO4^2-(aq)>SO3^2-(aq) c)BrO3^-(aq)>Br^-(aq) d)IO3^-(aq)>I2(s)
calculate the concentration of each diluted reactant in the 50.0ml volumetric flask. then calculate the concentration of each reactant in the reaction beaker before any reaction has occured.
calculate the amount of heat required to completely sublime 99.0 g of solid dry ice co2 at its sublimation temperature.
A solution contains .60 M NH4OH and 1.5 M NH4Cl. what is the maximum concentration of Mg2+ that can be present in such a solution without precipitating Mg(OH)2
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