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Question - One of the main components of hard water is CaCO3. When hard water evaporates, some of the CaCO3 is left behind as a white mineral deposit. If a hard solution is saturated with calcium carbonate, what volume of the solution has to evaporate to deposit 19.7 mg of CaCO3? Ksp of CaCO3 is 4.96x10^-9.
I have no thought how to do this thank you for your help
Assume that a solid has a constant of Cp,m=25 J/K-mol from 50K to 298K and that the DeBye approximation is valid from 0K to 50K. Estimate the standard molar entropy Sm for the solid at 298K.
find deltah for the freezing of water at -8.00 degrees celcius. the specific heat capacity of ice is 2.04 jg. c and its
Describe the mechanism of the preparation of 2-methyl-3-hexanol by reducing an appropriate carbonyl compound.
The final temperature of the water and iron was 48.4oC. Assuming that the calorimeter itself absorbs a negligible amount of heat, what was the mass
methane enters a heat exchanger at a volumetric flow rate of 120.0 m3min at a pressure of 1.013 bar and temperature of
NH3 is a weak base (Kb = 1.8 × 10-5) and so the salt NH4Cl acts as a weak acid. What is the pH of a solution that is 0.088 M in NH4Cl
How much dry solute would you take to prepare each of the following solutions from the dry solute and the solvent?
A twofold increase in the initial concentration of A leads to a 1.41-fold increase in the initial rate. what is reaction order
407 mL of H2 gas is collected over water at 785.3mm Hg and 23.5 degrees C. What would be the volume of this dry gas at standard conditions?
how much potssium chlorae is needed to produce 20.0 mL of oxygen gas at 670 mm Hg and 20 degrees celcius.
Question- Explain any differences in regio- and/or stereochemistry of the proposed products. Including a mechanism as part of your answer, with notes clearly indicating any intermediates you believe to be present during these conversions may be he..
what is the composition of the vapor of a pentane-hexane solution that has a vapor pressure of 357 torr at 25c vapor
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