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Calcium carbonate is a main contributor to the "hardness" of water. The amount of CaCO3 in a water sample can be determined by titrating the sample with an acid, such as HCL, which produces water and CO2. State a balanced chemical equation for this reaction. Generate a plot of solution pH versus volume of 0.100 M HCL added for the titration of a solution of 250 mg of CaCO3 in 200.0mL of water with 0.100 M HCL; suppose that the HCL solution is added in 5.00mL increments. Explain what volume of HCL corresponds to the equivalence point?
An electrochemical cell is constructed in which one half-cell contains AgN03 solution in contact with an Ag strip, and the other half-cell contains magnesium nitrate solution, Mg(N03h, in contact with a Mg strip.
Two beakers of 0.1molal glucose aq solution and 0.2 molal urea AQ SOLUTION ARE kept in a closed bell jar. they contain 200ml solution. what will be the volume in each beaker after some time
Draw the major organic product from reaction of 1-butyne with BH3 in THF, then H2O2, OH-. If no reaction occurs, writE ethane, CH3CH3.
A gaseous mixture contains 0.30 mole of co(g), 0.10 mole of H2(g) AND an Unknown amount of CH4(g) in a litre flask. this mixture is in equilibrium at 1200 deg K acc to
An unknown gas sample was dissolved in water at 25°C, producing a solution with a concentration of 4.7 x 10-4 M at 522 mm Hg. What is the Henry's law constant for the unknown gas
Briefly comment on the effect of solution concentration on cell potential. Note that E knot is measured using 1M solutions,
You are tasked with preparing 100 mL of a pH = 12.00 buffer. Each buffer component must have a concentration of at least 0.10 M.
What is the bond angle and molecular geometry around the 2 middle carbon atoms?
Consider two different solutions of the same UV-absorbing compound. Upon UV-analysis, Solution B gave an absorbance of 1.5 and Solution A gave an absorbance of 0. 5 at the same wavelength. Solution B is higher in concentration by what ratio (or pe..
Calculate the energy per mL if the energy per gram for Methanol (MW = 32g) is 0.83 kcal/gram and for Ethane MW
Calculate the equilibrium partial pressures of O2, NOCl, NO2, and Cl2. Peq(O2) = . Peq(NOCl) = . Peq(NO2) = . Peq(Cl2) = . (b) Calculate KP for this reaction. KP
Define the same radiation ejects electrons from rubidium atoms with a velocity of 2.45 x 10^6 m/s. Explain what are the ionization energies in eV of the two elements
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