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19.04 g of ammonia gas was mixed with 31.10 g of hydrogen chloride gas in an enclosed container. Calculate:
a) Which of the reactants were in excess and how much,
b) How much of ammonium chloride was formed,
c) How much more extra of the insufficient reactant would be needed to completely react with the excess remaining of the other reactant? (N = 14, H = 1, Cl = 35.5)
Titanium tetrachloride, TiCl4, has a melting point of -23.2 C and has a Delta H fusion = 9.37 kJ / mol.
an aqueous solution of a certain organic compound hasnbsp an osmotic pressure of 12.16 atm at 250c a density
36.8mL of hydrogren gas, from the reaction of a piece of magnesium ribbon with hydrochloric acid, are collected over water in a eudiometer. The temp of the hydrogen gas at 21C, and the atmospheric pressire is 768mmHg.
The Ka of acetic acid is 1.85 x 10-5. What would be the pH of a buffer prepared by mixing 50.0 mL of 1.0 M potassium acetate with 50.0 mL of 1.0 M acetic acid?
Using a solution of (HOC 2 H 2 )3NHCl, solution in which Kb, ((HOC 2 H 2 )3N) = 5.9 × 10 -7 then determine what is the pH of a 0.010 M triethanolammonium chloride,
1.determine the freezing point of a solution of 60.0g of glucose c6h12o6 dissolved in 80.0g of water.2.what is the
Determine ΔSsys separately for the volume and temperature changes and show that ΔSsys=0 for a reversible adiabatic process. Also, if the expansion had instead occurred irreversibly against a constant external pressure of 1 atm
mixtures of helium and oxygen are used in scuba diving tanks to help prevent the bends. for a particular dive 29.0 l of
It required 50.00 mL of 0.1565 M KMnO4 to titrate 2.878 g of the solution containing hydrogen peroxide. What was the mass percentage of H2O2 in the solution
A 13.7g sample of an unknown gas occupies 15.5L at a temperature of 17 CELSIUS and a pressure of 743 mmHg. What is the molar mass of the gas
The concentration of each gas once equilibrium is reached. The new equilibrium concentrations if the volume is suddenly halved (still at 298K)
Which of the following molecules have dipole moments? For the molecules that are polar, indicate the polarity of each bond and the direction of the net dipole moment of the molecule.
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