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Calculate the concentrations of all species present and the pH in 0.10 M solutions of the following substances. See appendix C for values of equilibrium constants
(a) Ethylammonium nitrate, (C2H5NH3)NO3
(b) Sodium acetate, Na(CH3CO2)
(c) Sodium nitrate, NaNO3
One mole of He is heated from 200 degree C to 400 degree C at a constant presure of 1 atm . Given that absolute entropy of He at 200 degree C is 810 J/K/mole and assuming He is a perfect gas
when 0.273-gm of Mg is reacted at high temperatures with N2 to produce 0.378-gm of a solid, MgxNy. Calculate the empirical formula of the product.
What is the chemical formula for a compound containing half as many barium atoms as iodine atoms?
The ester ethyl p-nitrobenzoate is more reactive towards nucleophilic acyl substitution than ethyl p-methyoxybenzoate. Explain the reactivity difference
Two mols of a Van der Waals fluid are maintained at a temperature T=0.95Tc , in a volume of 200cm3
The emulsifying agent from hand cream, a salt, is prepared from two chemicals. Write the structure of stearic acid.
Estimate the heat released when ethene CH2 CH2 reacts with hydrogen gas to give CH3CH3.
Polyunsaturated fatty acids (PUFAs) have several carbon-carbon double bonds as present in beta-carotene
A gas occupies a volume of 75 ml when the pressure is 380 mmHg. What volume does the gas occupy at 1140 mmHg
Provide proper IUPAC names for each compound below or draw structures corresponding to the lowest energy conformation. A. cis-1-fluoro-2-methylcyclopropane
If 1.0 mL of vinegar needs 22.5 mL of 0.195 M NaOH to reach the equivalence point in the titration, what is the molarity of the original vinegar solution?
An environmental engineer analyzes a sample of air contaminated with sulfur dioxide. To a 500. mL sample of air at 700. torr and 38°C, she adds 20.00 mL of 0.01017 M aqueous iodine, which reacts as follows:
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