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An unknown salt is either NaF, NaCl or NaOCl.When 0.050 mol of the salt is dissolved in water for form 0.500 L of solution, the pH of the solution is 8.08. What is the identity of the salt?
Calculate the concentrations of all species at equilibrium for the following case.
a chemical reaction produces 653,550 kJ of energy as heat in 142.3 mins. Calculate the rate of energy transfer in kilojoules per minute.
Nitromethane has a relatively high boiling point of around 100 c. Which of the following intermolecular force is not present in pure liquid nitromethane and why.
Determine the Volume of air and partial pressure of nitrogen, oxygen, water vapor and air
A 270- mL flask contains pure helium at a pressure of 749 torr. A second flask with a volume of 470 mL contains pure argon at a pressure of 730 torr what is the partial pressure of He?
Calculate the molar concentration of OH- ions in a 7.5×10^-2 M solution of ethylamine C2H5NH2(Kb = 6.4x10^-4).
Determine the entropy change for freezing 6.33 grams of C 2 H 5 OH at 158.7 K? H =-4600 J/mol. Express your answer in units of J/K.
Mg3N2(s) + H2O(l) → Mg(OH)2(s) + NH3(g) If this process is 82% efficient, what mass of ammonia can be prepared from 22.0 kg magnesium nitride.
Magnesium has three isotopes, Mg-24, Mg-25, and Mg-26. The percentage abundance of each in order is 78.70%, 10.13%, 11.17%.
a gas sample occupies 4.20 l under a pressure of 800 torr at 350K.At what temperature will it occupy 3.60 L at the same pressure?
Example of reducing agent mechanism, Using Curved arrows to symbolize the flow of electrons, write the mechanism for the steps involved in the conversion of 9-fluorenone
Under certain conditions, the formation of ammonia from nitrogen and hydrogen has an 8.12% yield. Under such conditions, how many grams of NH3 will be actually produced.
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